Navigation & Leadership – a manual for walkers
Colin Saunders wrote this book in 1993 for the Ramblers’ Association (as it then was – now just plain Ramblers). It was his first published work, so he has considerable affection for it! A second edition was published in 1994, but it’s now out of print.
You may be able to get hold of copies from second-hand booksellers such as Amazon or eBay. However, on Ramblers’ website, you can either read the book text HERE, or download a series of PDF guides that are based on this book HERE.