I started this series because I wanted to share the world of psychology with those who are curious. Humans are extremely busy these days with their attention pulled in a multitude of directions. These volumes are smaller, bite-sized doses of knowledge that cover specific topics. Volume I focuses on a variety of psychological concepts. Here's to the lifelong learners who are always learning on the go.Each letter of the alphabet highlights two distinct concepts. The first half discusses the first concept, and the second half discusses the second concept. The one exception is the letter X, which discusses only one concept.