SHORTCUTS A CONCISE GUIDE TO ROTARY CUTTING BY DONNA LYNN THOMAS

This is one of the best books ever. My darling husband bought it for me in 1991, I was in England and he made frequent business trips to the US.

This book revolutionized quilting for me. Sadly I lost my original copy in a Melbourne flood but by the miracle of ebay I was able to replace it. It lives in the conservatory in England along with Judy Martin's Ultimate Rotary Cutting Reference. 

This is the book that taught me about the magic 7/8s of an inch. even more importantly it showed how to cut unusual shapes at a time when the only templates available were rectangles.