The Dual Survival stars each have ebooks out for the Kindle that are great deals.
Cody Lundin has a book out called Cody Lundin’s Disaster Survival Kit which is a 72 page discussion of bug out bags and what you should have in them. It’s a bargain at $1.99.
Dave Canturbury has a book out called Survivability for the Common Man which discusses his 10C’s of survivability concept and gives readers a basic understanding of self-reliance in emergency situations. It’s 188 pages and cost $8.