ADHD
Drs. Edward Hallowell and John Ratey
  Driven to Distraction
  Delivered from Distraction

Learning Differences
Dr. Mel Levine
  A Mind at a Time
  The Myth of Laziness
  Ready or Not, Here Life Comes

College
Kathleen G. Nadeau, Ph.D.
  Survival Guide for College Students with ADHD or LD

Testing
Ellen Braaten, Ph.D, and Gretchen Felopulos, Ph.D
  Straight Talk about Psychological Testing for Kids