The Fun Knowledge Encyclopedia Volume 2 - 99 cents
https://www.amazon.com/dp/B07983X699/
*****
Super Immunity: The Essential Nutrition Guide for Boosting Your Body's Defenses to Live Longer, Stronger, and Disease Free - $1.99
https://www.amazon.com/gp/product/B004U6WUYE
(Maybe this should be with the cookbooks.)