Clegg, J. (1843). Clegg’s international directory of the world’s book trade. In Internet Archive. London [etc.] J. Clarke [etc.]. https://archive.org/details/cleggsinternati01unkngoog/page/n56/mode/2up

Day, R. (2013, March 5). Bookbinding Models. West Dean. https://www.westdean.ac.uk/blog/bookbinding-models

Etherington, D., & Roberts, M. T. (1994). Bookbinding and the conservation of books: A dictionary of descriptive terminology. Conservation Online (CoOL). https://cool.culturalheritage.org/don/don.html

Hoeksema, M. (2014, May 24). A reference guide on bookbinding types. Deviantart. https://www.deviantart.com/boekbindboetiek/journal/A-reference-guide-on-bookbinding-types-454645325

Houston, K. (2016, August 22). The mysterious ancient origins of the book. BBC. https://www.bbc.com/culture/article/20160822-the-mysterious-ancient-origins-of-the-book

Materials and mechanics for book conservation: Part II. The impact of sewing on spine structure. (2024, January 30). The Book & Paper Gathering; The Book & Paper Gathering. https://thebookandpapergathering.org/2024/01/30/materials-and-mechanics-for-book-conservation-part-ii-the-impact-of-sewing-on-spine-structure/

Rennicks, R. (2017, July 12). The History Of Vellum And Parchment | The New Antiquarian | The Blog of The Antiquarian Booksellers Association of America. Abaa.org. https://www.abaa.org/blog/post/the-history-of-vellum-and-parchment

Sirmans, H. (2022, May 2). Bound in Stitches: A Brief Guide to Common Bookbinding Stitches. Grecian Needle Seamstress on Demand. https://grecianneedle.com/my-articles/bound-in-stitches-a-brief-guide-to-common-bookbinding-stitches/

Traverso, V. (2022, July 29). Keeping the Centuries-Old Tradition of Venetian Bookbinding Alive. Atlas Obscura. https://www.atlasobscura.com/articles/venice-traditional-bookbinding

Verheyen, P. D. (1996, November 20). German Case (Bradel) Binding. The Book Arts and Bookbinding Web. https://www.philobiblon.com/casebd.shtml

Wisniewski, K. A. (2017, November 8). Types of Book-Binding: An Introduction. The Projector. https://kawisniewski.com/2017/11/08/types-of-book-binding-an-introduction/