My favourite bushcraft/survival book is by far Mors Kochanski's "Bushcraft" (originally "Northern Bushcraft"). This book is a extremely in-depth and comprehensive - and more importantly; it starts from absolute square one!
This is a book that a person, with absolutely no knowledge about bushcraft/survival at all, could bring along, together with maybe a field guide on local flora and fauna, and actually use to bolster his survival efforts.
Mors is, rightfully imho, known as the father of modern bushcraft - and his book should be the first book in any bushcrafter's library. You would litteratly need 4-6 other bushcraft books, from different authors, to cover what Mors has managed to gather into one book.
If you have not read it yet, this should be the nex book you read!