I am currently working on my own fully-illustrated book about book arts for teachers! If you'd like to be alerted when I finally complete it, please click here to be added to my mailing list.
In the meantime, here are some suggestions for books I find useful.
BOOKS ABOUT BOOK-MAKING
Cover to Cover, by Shereen LaPlantz: Beautiful, inspiring pictures. Some of the directions can be a little hard to follow, but a great variety of projects to choose from, ranging from easy to advanced.
Multicultural Books to Make and Share, by Susan Kapuscinski Gaylord: A great selection of book formats from around the world, along with ways to incorporate them into the curriculum. It's out of print, so if you can't find a used copy, check her website to order it in e-book form: http://www.makingbooks.com
Making Books That Fly, Fold, Wrap, Hide, Pop Up, Twist & Turn: Books for Kids to Make, by Gwen Diehn: Lovely photos, and some nice project ideas. I particularly like this book, though, for the binding itself – the spine is exposed underneath a piece of mylar, so kids can see the many layers that go into a book binding.
Creating Books & Boxes: Fun and Unique Approaches to Handmade Structures, by Ben Rinehart: A recent addition to the bookbinding instruction market. Ben offers a clear approach & good step-by-step instructions for a variety of simple books and box projects.
A Book of One's Own, by Paul Johnson: Deals with simple book-making, as well as helping kids develop the text & illustrations for their books.
BOOKS ABOUT POP-UPS
The Pocket Paper Engineer, by Carol Barton: BUY THIS ONE FIRST! This book is clear, amazing, a fantastic resource that both kids and adults will prize. Highly, highly recommended. Buy directly from her website, Popular Kinetics.
Pop-up Paper Engineering, by Paul Johnson: Easy to advanced concepts covered. Not the easiest book to follow if you don't have any prior pop-up experience, but a good resource.
The Pop-Up Book: Step-by-Step Instructions for Creating Over 100 Original Paper Projects, by Paul Jackson: This book offers clear photos & instructions – a good basic resource.
The Elements of Pop-up, by David A. Carter & James Diaz: A beautiful, exciting exploration of pop-up forms. However, there aren't any instructions – this is kind of like a dictionary of forms rather than a how-to book.