This book is one of the best and most practical I have encountered on depression and manic depression (aka bipolar disorder). The workbook offers an overview of manic depression and depression like most other books on the subject, but takes it further than that with chapters full of self-assessments, examples, and solid advice.
Initially, I read the whole book and skipped over the activities, most likely because I was uber-manic and tanked up on breve lattes. Surprisingly, this approach did allow me to retain some information from the text, but it really became helpful after I came down a bit and started going over the book under the watchful eye of my therapist. I then approached The Depression Workbook in bits and pieces and it has been extremely helpful to me. A lot of it is written in lists which appeals nicely to both the manic or depressed brain. It's realistic, well-researched, and worthy of highlighting. Highly recommended.