This book, developed for adult educators who teach or tutor reading in General Educational Development (GED) classrooms and for teacher trainers, contains 18 fact sheets on learning and thinking, each about 10 pages long. The following fact sheets are included: (1) Literature Is Not Science; (2) Making Connections; (3) Mental Models; (4) Thinking about Thinking; (5) Getting Information into Memory; (6) Memory and Learning; (7) Working Memory and Learning; (8) Long-Term Memory and Learning; (9) How Thinking Develops, Part 1--General and School-Based Development; (10) How Thinking Develops, Part 2--Changes in Strategies; (11) How Thinking Develops, Part 3--Experience Makes Some Difference for Adults; (12) The Importance of Teaching Content; (13) What Does Good Thinking Look Like; (14) Critical Thinking; (15) Active Learning; (16) Problem-Based Learning; (17) Supporting Good Thinking; and (18) Adult Learning. The fact sheets incorporate learning methods based on cognitive research, including questions for teacher reflection; quotes from teachers, learners, and researchers that show how the information presented is relevant to teaching; a summary of the ideas and evidence; what this means for teachers; and a set of short lesson ideas based on the findings. The book also contains appendixes on two frequently-asked questions ("Are there learning styles?" and "What about the brain?"); nine short articles summarizing many of the fact sheets; a selected, annotated bibliography with 14 references; a glossary of 26 technical terms used in the book; and an index. (KC)