Art for art's sake

This book introduced a certain concept X which was based on the interactions that Y had with his patients over a year and a half in the late 60s.
This heavily edited cover of this book had an alternate cover(a late 70s edition) which has an art connect.
The concept X was also the theme of many of the songs on the debut album of the band started by the duo below:

Give me everything.


Answer:

X - Primal Therapy. Above is the 1977 Abacus publications edition.

Y - Athur Janov

Duo - Tears for Fears. Album - The Hurting

Cracked by Tannishka and Hari.