The Conservation of Leather Bookbindings Workshop Review by Kasie Janssen

One month ago, I was able to attend The Conservation of Leather Bookbindings at the University of Notre Dame. The American Institute for Conservation (AIC) and the Foundation for Advancement in Conservation (FAIC) supported this 5-day workshop that was taught by book conservator and tool-maker Jeff Peachey. Conservation is a field that requires a constant love of learning new skills and techniques, so when I saw this workshop was hosted not too far from Cincinnati, I jumped at the opportunity to increase my knowledge on the conservation of leather bookbindings.

Jeff demonstrating a leather reback.

Leather is an interesting topic in book conservation, as many of the historic books we work on have full or partial leather bindings. Leather, like paper, comes in a variety of qualities, and has inherent issues as it ages over time. And we, as conservators, have many ways to combat these issues to make the books in our collections accessible to all.

This workshop offered an in-depth look at the many ways leather can be conserved, while also discussing the pros and cons of the various types of treatment options. This level of understanding is crucial part for us.  Think of it like taking a test – you can simply have the list of answers, or you can study and understand why the answers are in fact correct (any teacher will tell you they prefer the latter of these two options, and we do too!).

Joint tacketing and sewing extensions.

While the leather on the outside of a book is what most of us see when we look at our books and bookshelves, a large portion of the workshop focused on how those books are put together. If you’ve seen a leather book, you have likely seen a book that has its covers detached or missing. We talked about reattaching covers using techniques such as joint tackets, sewing extensions, slitting and slotting the boards, and tissue repairs. These are techniques that need to be considered before a leather reback, which was the final technique we learned, would take place.

One of the most beneficial aspects of the workshop was that we were able to practice these techniques on our own books. (I’ll take this time to note that these were not collection items! We like to practice on models or personal books first.) Being able to learn about the techniques and then practice them was a great way to use the hand skills needed for these types of treatments. Having our own personal examples that were treated also provides an application of how these techniques work and wear over time.

Detail of sewing extensions that come out under the original sewing supports.

The workshop also covered leather dying, as well as knife sharpening – a crucial tool for working with leather, and leather paring techniques and tools.

I have to say, the workshop happened in the week before Covid-19 began impacting the United States on a massive scale. All of the attendees remained in contact with their home institutions and families throughout the week as news progressed. The workshop, though, provided a sort of conservation utopia where we could turn off the news and focus on the profession that we all love. Jeff Peachey was an incredible instructor, offering vast amounts of knowledge and insight that we can apply to our day-to-day work. And the staff and facilities at the University of Notre Dame provided the perfect environment for our leather conservation deep dive. A sincere thank you to Jeff, the University of Notre Dame, AIC and FAIC for the wonderful workshop.

While I continue my work-from-home, I will be finishing a few of the treatments I had started during the workshop, and also practicing things like leather paring, leather dying, and repair techniques. This will ensure that when we are back in The Preservation Lab, I’ll be able to provide assistance on many of the damaged leather books that are waiting for our tender loving care.

Paring leather for a reback.

In the meantime check out some more photos from the workshop on our @ThePreservationLab Instagram!  And follow us if you don’t already to see what we are up to in our work-from-home spaces.


Kasie Janssen (PLCH) is the Senior Conservation Technician of The Preservation Lab, a collaborative hybrid lab of The Public Library of Cincinnati and Hamilton County and the University of Cincinnati Libraries in Ohio. She works on both special and general collection items for both institutions. She holds an MSLIS from the University of Illinois at Urbana-Champaign, and has been working in the field of conservation since 2014.

Upcoming Workshop: The Conservation of Leather Bookbindings

In this variant of sewing support extensions that I came up with,  new thread is carefully looped in signatures and under or through existing cords, without having to lift the leather on the spine.  Unlike joint tacketing, this method does not restrict the movement of the book spine at the shoulder.


I’ll be teaching this week long workshop for at Notre Dame University, South Bend, Indiana, March 9-13, 2020. The workshop will be devoted to a wide variety of contemporary book conservation techniques to deal detached boards, arguably the most common place books fail. There was much lively and informative discussion when I taught this two years ago at Emory University, and plenty of demonstrations and hands-on work time. The workshop details forty-six methods — although many are combined in practice — organized into five basic groups.

This workshop is offered through the American Institute of Conservation. More info and registration here.


In this week-long intensive workshop, students will be introduced to a wide variety of current techniques used to conserve leather bookbindings. Book conservators, technicians, and bookbinders who wish to learn, expand, refresh their treatment skills are all welcome. Previous bookbinding or conservation experience is required.

Detached boards are the most common place leather bookbindings fail, and all five of the primary methods of treating this will be taught: mechanical sewing extensions and tacketing, inner hinge repairs, outer hinge repairs, interior-board repairs (both splitting and slotting), and several styles of rebacking. Many treatments involve a combination of these techniques. Questions concerning methods of consolidating older leather, the archival qualities of modern leather, and leather dyes will be discussed. A variety of methods to pare, consolidate, and lift leather will be introduced. Since a sharp knife is crucial to success in leather work, sharpening and easy ways to maintain a sharp edge will also be taught.

Participants should bring six to eight non-valuable leather bound books to practice on. It would be best to have a mix of tightback and books with hollows, and avoid case bound books. Skills to be learned include leather paring with a knife and paring machine, how various tools and machines for leather paring including a modified 151 spokeshave, and how to choose an appropriate lifting knife or tool for the task at hand.

There will be individual consultations with students before the workshop to discuss potential treatments for their chosen books, and determine if extra materials or tools might be required. Decision making based on the actual books brought to the class will be foundational.

The primary goal of this workshop is to equip participants with a more nuanced understanding of the pros and cons of currently practiced leather conservation techniques, gain supervised experience while performing them, and feedback when they are completed.

Interview with Jeff Peachey from the Guild of BookWorkers Newsletter, August 2019

Below is an interview by Brea Black originally published in the Guild of BookWorkers (GBW) Newsletter No. 245, August 2019, pp. 16-18.  It outlines many aspects of book and tool work I’ve been involved with in the past 30 years.

If you are not a member of GBW you should be!  There are usually a number of interesting articles in the newsletter, a (sort of) annual journal, workshops held around the US hosted by local chapters, and an annual conference.

I will be vending tools at this year’s Annual Standards of Excellence, October 24 – 26, in Philadelphia, PA.  In addition to new tools, I plan to bring a lot of used books and tools I have acquired over the years to sell. Please stop by my table and say hi!

Demonstrating paring leather works best when you wear your lucky apron! Photo: Yungjin Shin.

Q1: How did you get started in book conservation and what made you decide to pursue it as a career?

A1: Way back in the 1980’s, at Goshen College, in Northern Indiana, my senior project was writing, laying out, typesetting, making half-tone illustrations for a book of my own poetry. It got me thinking about the idea of a book as a method of distributing content. At the same time, I was working in a bicycle repair shop, and I loved the hands-on, mechanical thinking. My first job in NYC was working in a bicycle shop, though I rapidly got tired of the binary nature of only twisting wrenches, so got a job working as a clerk at Gotham Book Mart. Then these two aspects came together, though the poetry seemed to gradually vanish.

At Gotham, I really became interested in antiquarian books, and some minor repairs we did to the books in the store. I found a cheap copy of Edith Diehl’s “Bookbinding: Its Background and Technique”, bought a few bookbinding tools, made a standing press out of a scaffold jack and some 2 x 4’s, and began trying to teach myself bookbinding. This is often the way I approach learning anything: get the tools and try to learn what they can teach me.

I quickly became obsessed with bookbinding, and would practice by making blank books for several hours each morning before I went into work, and sold them on the streets in SoHo to be able to purchase more materials. Since they were books, I could sell them without a license, which pissed off the people selling jewelry that needed one! Then I started taking a few classes at the Center for Book Arts, notably with Tim Ely and a leather covering class with James Brockman.

After some part-time jobs working as a technician, primarily at Teachers College, I landed a full time job at Columbia University, initially working as a general collections technician. My job was to do either 5 recases a day. It was great training for my hand skills, and I quickly realized how little I actually knew about bookbinding.

I was very lucky to land at Columbia at that time. Nicholas Pickwoad was teaching the book conservation section for the MLIS Conservation Certificate, and Rare Book School was there. There were interesting public lectures all the time, and lots of big names coming through the lab, like Christopher Clarkson. I had no idea it was one of the best places to be at that time; I thought all institutions were like this.

In the early 1990’s, the RBS and the Library school were sold off, and Fred Bearman arrived as the Head of Conservation in the lab. I was soon promoted to the position of a special collections technician, working closely with and learning a great deal from Fred. It was kind of an apprenticeship in the broad sense, like that craft gets transmitted by close contact with skilled practitioners. In the four years I spent with Fred that I became confident in my skills, especially treatment decision making, which takes a long time to learn. Essentially, I was trained at the bench, which I feel is a great way to learn, since you become exposed to the most common problems and treatments in a large research institution. Now when I look back, I did a version of a traditional apprenticeship, spending seven years learning, before setting up my own business in 1996.

The Peachey Manual Board Slotting Machine. Custom made, please inquire for prices and manufacturing times.

Q2: You invented a Board Slotting Machine that is used in conservation labs across the world. How did you develop that from initial concept to finished machine?

A2: I’d read Christopher Clarkson’s article about board slotting in the 1990’s, and thought it was crazy, too complex, and difficult to use. Gradually, however, the idea kept reoccurring, but I was too impecunious to purchase the $30,000 German machine available at the time. I started thinking about a simpler way to make a machine.

What put me over the edge was the purchase of a laboratory grade, variable speed and reversible motor at the Church sale for $10. At the time they were selling for well over $700 new. My first plan was to make a spit rotisserie for my grill — which fortunately never happened — and at one point it dawned on me it would be a the perfect motor to drive a carriage on a board slotting machine.

I originally made one for myself, basically through trial and error, although my background in building bicycles greatly helped me with the mechanical thinking and the basics of working metal: measuring, sawing, drilling, tapping, finishing. I still do all my metalwork with some very basic tools: a metal cutting bandsaw, 2 x 72″ belt grinder, drill press, a small milling machine, and hand tools. It took three frustrating months to get the first one right. After I used it for a while, I thought I might as well make another one to sell, in order to recoup some of the time investment I had in the first one. So it started.

In order to produce an affordable machine, I had to make it from parts from other machines. The downside of this, is that several key parts became unavailable, so I was forced to redesign it again in 2012. The new version is a smaller, less expensive, lightweight, easy to move out of the way when you are not using it, and more intuitive to use. Many larger labs are using it, but it is still too expensive for most conservators who have their own studio.

My newest tool, a M2 micro knife blade that fits into a .9mm mechanical pencil. Excellent for fills and delicate miniature work. Coming soon at

Q3: You make a variety of hand tools as well. Why did you start making your own tools?

A3: I started making knives almost as soon as I began bookbinding. I (wrongly!) thought cloth binding was too easy, so I started out with leather binding. I quickly grew frustrated with how quickly my knife dulled; it just didn’t make sense to me that I had to spend more time resharpening the knife than using it.

So I started reading and experimenting with different steels and knife types, and for a number of years just made knives for myself and colleagues.

It was really the attack on the World Trade Center in 2001 when I became much more serious about promoting and selling my knives as a business. My conservation work completely died for about six months. Nobody in NYC was thinking about bookbinding, or even picking up books I had ready. At the time I was living in the disaster zone downtown, so one positive result was that FEMA paid for a HEPA vacuum, which I still use. The other was that I got more serious about putting together a catalogue to sell tools nationally, which Peter Verheyen graciously put on his website. I realized I needed to have a source of cash flow outside of NYC.

Sales slowly built up for about 15 years, until 2017 when I decided to establish a “real” online store, Doing this boosted sales quite a bit, since it is convenient and easy to order, and people didn’t have to deal with me! The newest tools I have come up with are a large Rectangular Burnisher with a Delrin sole, useful for smoothing large work, a Bookbinders’ Pliers, which is great for sewing and board reattachment, and a .9mm micro-knife for extremely precise work. I think it would be great for paper cutting. The blade fits into a standard mechanical pencil.


Q4:You always have interesting content on your website and on Instagram. When did you first put your work online and has your approach changed from when you started?

A4:Thanks! I started by blog in 2008 and just got on Instagram just this year. I have over 500 blog posts and well over a million views. My all time number one post is my instructional “How to Strop”.

Originally I started my blog as an easy way to make an online portfolio for conservation work, and sell some tools. But it has become a good way for prospective clients to get a sense of my approach to conservation and tools. It also helps keep some people away, since they realize by reading a bit that I don’t really do that much more new or design bookbinding, instead concentrate on repair and conservation. It also gives me a chance for me to try out some ideas relating to my current research interests. The danger always is that writing a blog is pretty quick and easy, so it can take away from the sustained energy necessary for more formal publication. Currently I’m working on a big project about early nineteenth century English and American bookbinding.

I’m still trying to figure out how Instagram will work for me. I find it a little frustrating, since it is a self contained ecosystem, and limited in the links you can add. But I’ve been putting up some images of mainly interesting tools I have seen or made. I like how international it is, since it is largely visual rather than verbal.


Q5: I notice you teach a lot of workshops around the country. How does this integrate with your conservation work and toolmaking?

A5: Great question! I often spend around 6 weeks each year teaching on the road, nationally and internationally. I really enjoy it for a number of reasons. The most selfish one is that I work alone most of the time, so teaching gives me a great chance to talk a lot about all the things I am passionate about: book, tools, and craft. And it gets me out of the studio a bit and travel! A less selfish reason is that I want to give back to the craft of bookbinding, in an attempt to try to repay all the people who have taught me formally and informally. I want to contribute positively to the vitality, skill level, and sustainability of bookbinding as a craft. For me, bookbinding is a great way to approach all kinds of interesting practical and historical craft questions, as well as a way to explore many various materials.

This past summer, I taught my all time favorite class, which is now called “Historical Book Structures Practicum”, for graduate Book Conservation students from Buffalo State, New York University, and Winterthur/ University of Delaware. For the entire month of June, we immerse ourselves in a variety of historical book structures ranging form the early 16th century to the mid-19th. This year we made six models. The month is so intense and involved it goes by in an instant. Part of the workshop involves going to a lot of flea markets and antique malls to conduct primary research on tools. We also dip our toes into tool making and restoration.

I’ve always been the kind of person who generally likes to work alone, though, so the combination of teaching, conservation work, and toolmaking is working out so far. I feel lucky!

I’m especially interested in books that were used by regular people, not just fancy bindings made for the 1%. Above is an example of the cheapest bound book available in the early nineteenth century, a Publishers Boards Binding. On the right is a model of the actual book on the left.


Here .a pdf of the formatted interview:

peachey interview in pdf