For example - a couple of volumes from the "Handbook of Psychology" series:
Handbook of Psychology, Personality and Social Psychology by 
The Corsini Encyclopedia of Psychology and Behavioral Science by 
Psychology Basics
Sport Psychology: The Key Concepts by 
The Oxford Companion to the Mind by 
The Concise Dictionary of Psychology by 
Sex in the Ancient World From A to Z by An example of free ebooks from National Academies Press.
Our subject libguides provide links to printed and online resources - books, articles and websites.
