A review by hermy
Make It Stick: The Science of Successful Learning by Henry L. Roediger, Mark A. McDaniel, Peter C. Brown

4.0

From what I remember, the key concepts were:
Active Learning (testing) is key - recall strengthens memories
Spaced repetition - the harder it is to recall, the more you will remember
Interspersion - changing activity will
Reflection
Generation
Mnemonics
To be continued...