I'd recommend the SAS Survival Handbook. It has color illustrations for plant and mushroom identification, it's really extensive, Lofty is a hilarious old coot, and it covers a ton of survival info.
https://www.youtube.com/watch?v=E_k2b6-F7LEAlso, youtube vids from Ray Mears to learn basic techniques and outdoor/bushcraft philosophy. Do your best to practice said techniques when you get a chance.