We form our sense of self based on the internal representations that we hold inside our minds. Think about it... if you were to think of your self image... what kind of picture would you see in your mind? Is it a big picture? A small one? Do you see yourself as if you are watching someone in a movie or do you see it through your own eyes? There are so many different distinctions such as the ones described above the comprise the 'stuff' of your self concept.
The difference between a useful self concept and an unuseful on is really the difference between how one codes the differences between the two. To influence change at the level of self concept is fairly simple to do so long as you have an effect model for how to do so.
Transforming Your Self by Steve Andreas is the culmination of a multi-year modeling project in which Steve set out to model the structure of self concept.
What I can say from Steve's work is that an amazing job!
If you ever said to yourself something to the effect of... that is just not something I can imagine myself doing... or that is just not who I am... if it's useful... and you really want to... by the time you are done reading this book you will be able to...
After reading this book and engaging in the thought experiments that Steve outlines you will be able not to only shift your self concept in a useful way but you will be able to assist others in doing the same.