Hi.
Overview does not sound like a purpose to me. Why would you want an overview? What is an overview going to do for you?
An idea for a thesis for psychology sounds more like a mind-probing question than a purpose. Now why would would you want a idea for a thesis? What will you do with a idea for a thesis in psychology. Why do you need to know how other artists are approaching a book? What will you do once you know how other artists approached a book?
Photoread4me
