to read many times ...

... To fully grasp the whole meaning.
The couple is decrypted here since its beginnings to happy times and crises. Each situation is illustrated by practical cases that can project into "real life" a little complicated terms used by the author. A good method so to facilitate flattening of feelings, but also stresses the need to work on yourself to build the couple.
Please note: one of the few works in which the couple is recognized in all its expressions (heterosexel or homosexual couple with two or three with the lover / mistress)
In short, to read whether you are single or a couple, curative or preventive, reading on his side or to read together.