Here is the link to the British Library's page on Embroidered Book Bindings
http://www.bl.uk/collections/early/embin2a.html.
Other webpages I'm using for research include
Making a Chemise Binding &
Heraldic Covers without Rebinding. This with the book I have from the library on the V&A textile collection should have me well on my way with at least the research portion of my A&S challenge project. Of course, any other resources or advice are always welcome. :)