Jeffrey Kottler is a therapist and (very) prolific author.

If you have every been in therapy and wondered why it took so long to work (if it worked at all), this is a book for you.

If have ever made a resolution only to see it fall by the wayside within a matter of days, this book is for you, too.

In less than 300 pages, Kottler explores all the major therapeutic schools of thought, shows the overlaps among them, and explores how each goes about producing lasting change.

Spoiler alert: There is not one answer. Each approach works for some people, therapist and patient alike. None works for every one.