Eric Berne
Author: Eric Berne
Publisher: Grove Press (1972)

In script analysis, winners are called 'princes' or 'princesses,' and losers are called 'frogs.'  The object of script analysis is to turn frogs into princes and princesses.  In order to do this, the therapist has to find out who the good guys and the bad guys are in the patient's script, and also what kind of a winner he can be.  The patient fights being a winner because he is not in treatment for that purpose, but only to be made into a braver loser.  This is natural enough, since if he becomes a braver loser, he can follow his script more comfortably, whereas if he becomes a winner he has to throw away all or most of his script and start over, which most people are reluctant to do.