Favourite colour for book cover?

much appreciated

 

I like the red and the grey one the best. It all depends in most cases on what the book is going to be about. Since you've given the title, I think the red one will do quite nicely, but you might be interested in changing the color of the word 'not' to a different one maybe to stand out more?

 

Nice and simple covers! I personaly would choose red.

 

Gray is my favorite cover but red is also owesome I like all these cover

 

Try to make green color not so bright.