Ruark's books are at the top of the list. All of them.

Elgin Gates' two books "Trophy Hunter in Asia" and "Trophy Hunter in Africa" are excellent.

Jesus Yuren's "Song of the Summits" is good if you enjoy mountain hunting.

"East of the Sun West of the Moon" is a fantastic book by the Roosevelt brothers, full of hunting and adventure.

Bell's books are probably a must for any collection, as are John Hunter's books.

Some that I really enjoy are the ones published by Amwell press, especially those by J Rihkoff.