Smart Drugs II by John Morgenthaler, Ward Dean, and Steven Wm. Fowkes.
This book is the updated version – but was published in 1993. I normally wouldn’t recommend material that is over two decades old.
But.. this book provides a great understanding of some of the fundamental drugs and nutrients regimes to improve your memory and increase your intelligence. The nootropics recommended in this book are evidence based and are still as relevant and popular in 2016. Overall, a good book if you need an introduction to nootropics.
The Better Brain Book: The Best Tool for Improving Memory and Sharpness and Preventing Aging of the Brain by David Perlmutter and Carol Colman
David Perlmutter is a #1 New York Times bestselling author and renowned neurologist who always provides great content. This book appears to be mostly marketed towards ageing and does include one section on specific brain disorders however, it also covers factors affecting mental function and tools for developing a better brain. The book includes quizzes, a brain fitness program, and a nutritional program (including supplements). Overall, The Better Brain Book really does provide a good practical understanding for how to improve memory.