Viktor Frankl
![Frankl in 1965](https://upload.wikimedia.org/wikipedia/commons/f/fe/Viktor_Frankl2.jpg)
Logotherapy was promoted as the third school of Viennese Psychotherapy, after those established by Sigmund Freud, and Alfred Adler.
Frankl published 39 books. The autobiographical ''Man's Search for Meaning'', a best-selling book, is based on his experiences in various Nazi concentration camps. Provided by Wikipedia
-
1