I have compiled a list of trusted vendors for supplies and equipment over the last twenty years of on and off again book binding and repair. Here is a list of resources.
The #1 Bookbinding Supply I Can't Live Without - I'll Answer Your Top 10 Questions
Bookmaking and Bookbinding Supplies
Some forwarding techniques for springback bindings
33 Pcs Bookbinding Kits 4 Pcs Bone Folder Paper Creaser Paper Folding Tool Book Binding Supplies with Bookbinding Needle, Waxed Thread, Steel Ruler, Awl for Bookbinding, Paper Card Crafts
ArmoredSuperHeavy — Resources for Bookbinding Here's a big list of
Bookbinding Supplies
Bookbinding Tools and Materials – ARCH Art Supplies
Hollander's Decorative Papers Bookbinding Supplies, 59% OFF
Hollander's Decorative Papers Bookbinding Supplies, 59% OFF
Buy Bookbinding Supplies by Lineco
Binding a Book With Common Materials : 13 Steps (with Pictures) - Instructables
Hollander's Decorative Papers Bookbinding Supplies, 59% OFF
Hollander's Decorative Papers Bookbinding Supplies, 59% OFF