I have recently finished Authentic Happiness by Martin Seligman and I found the whole subject of positive psychology excellent, in fact I bought three books to give to friends. So, in order to feed my new found interest in the subject I bought the Kindle version of A Primer in Positive Psychology, at great expense I might add, and now 27% through the book I have yet to find any new information or advice that isn't in Authentic Happiness! Case studies, test results, anecdotes are all the same, if I could return the Kindle book back to Amazon I would.
This book is a great reference for learning and researching Positive Psychology. Some chapters are easier to digest than others if you can get past the references to foreign researchers throughout the text.
Apart from the boring cover which makes it look like a school text-book for inner city primary school teachers, this text-book is highly informative on the exciting new field of positive psychology. It covers a vast range of ideas in a short space, and is thick with information, but mostly pleasantly readable.