Ahhh yes, this book is the incredible The Principles of Knitting
. 571 pages long, it's by far the most in-depth how-to book on knitting, a fantastic reference for the person wants to know now just how to do something, but why one way might be better than another, etc. It's a classic, and it's out of print. I've seen it sell for as much as $300 in the holiday season.
Folks pitched in and helped me buy this book to use as a reference for video making.
Isn't it amazing how wonderful folks here are?!
Thanks for the walk down memory lane, Celine!