I would like the cover to have a white background.
The idea behind the book is that the reader will learn new-to-them programming concepts that just work "like magic". They will go from knowing nothing about what they're doing, to quickly mastering a programming language.
I find the image of "an ace up your sleeve" to be a very apt metaphor for this. I wouldn't mind if that sort of image, or a playing card were incorporated in the design - hitting a nail on the head is fine.
The ChucK programming language logo is located here: http://chuck.cs.princeton.edu/doc/i…_logo3.jpg
While I don't have the rights to copy the logo directly, I would like it if a stylized version of the logo (this "=>" symbol) were incorporated.
As well, I would like it to explore greens/purples/yellows and be more minimalist than loud and crazy. I also like the look of serious/cool magic advertisements that evoke mystery.