There are many different bindings that fall under the category of long-stitch, but most are distinguishable by long stitches that attach gatherings of folded pages (also called signatures)
Bookbinding Fundamentals: Long-Stitch Leather Journal
screenshot-Bookbinding Fundamentals Long-Stitch Leather Journal - Tuts+ Crafts & DIY Tutorial - iBookBinding - Bookbinding Tutorials & Resources
Long Stitch Binding Tutorial Bookbinding Workshop Singapore
How to Make a Coptic Stitch Journal
screenshot-Bookbinding Fundamentals Long-Stitch Leather Journal - Tuts+ Crafts & DIY Tutorial - iBookBinding - Bookbinding Tutorials & Resources
Ganesh Karri
Top 10 Long-Stitch Bookbinding Tutorials - iBookBinding - Bookbinding Tutorials & Resources
Tutorials Book binding diy, Diy book, Handmade book
Long-stitch bookbinding simple bookbinding (no music, no talking)
Erica Munoz - Envato Tuts+ Profile
Erica Munoz - Envato Tuts+ Profile
85 Mother's Day Crafts Crafts & DIY Tutorials
Bound in Stitches: A Brief Guide to Common Bookbinding Stitches
Crochet a Gorgeous Set of Rainbow Nesting Baskets
This kit has everything you need to make a unique sketchbook/journal and learn a medieval bookbinding method: Long-stitch binding! The books you see
Journal Book Binding Kit - Medieval Longstitch