I wrote a little book on how abstract art is liberating for creativity.
You can order a (pdf) copy from me. The text below sets out my thinking in a bit more detail.
Introduction to Creativity and Abstraction: THE BOOK
If you are interested in thinking further about abstraction and creativity, you may order a short book for your personal use.
For further information or to order: email Mike at this address: mike <at @> skythunder <dot .> net