B-29 Superfortress by John Pimlott. Hard cover, copyright 1980 by Bison Books Limited. There are some notes on the pages by a Korean War Gunner.
8.75" x 11.25"

Gunnery In The B-29 by Ray Merriam. Soft cover, copyright 2012 by Merriam Press.
11" x 8.5"

B-29 Standard Procedures For Flight Engineers. January 1945.
6.6" x 4.75"

See photos for additional details.