Standard army pamphlet No. 21-7. Introduced in May 1944. Small pocket size and quality print makes it perfectly wearable and always usable item. Includes few themed illustrations and many advices.
20 pages.

Standard army TM 30-603 booklet dedicated for person in US service only. Introduced in September 1943. Small pocket size and quality print makes it perfectly wearable and always usable item. Categorized in 12 topic sections. Includes few blank pages for making notes. 120 pages (pretty thick).

Standard army TM 30-303 booklet dedicated for military personel only. Introduced in June 1943. Small pocket size and quality print makes it perfectly wearable and always usable item. Includes few themed illustrations and many phrases.
62 pages.