As per my previous mock ups, On my website I have a pattern as the wrapper and in the book it is my inside covers on the back of the covers.
I want a bright colour pattern that reminds the audience of child hood memories but had a link to psychology. So I looked at a few optical illusions, but decided this was too much and didn’t remind me of childhood so I don’t think it would remind others. So I took a detour and had a break from focusing and I came across this awesome website http://theawesomer.com/seeing-in-circles/156331/ where I found the below video
Yes this video is annoying to watch and a bit crazy, but it reminded me of kaleidoscopes that you had when you were younger. So I looked into patterns about this and came across a few shown below and also a tutorial on how to create my own patterns http://www.digital-photography-school.com/how-to-create-kaleidoscope-patterns-from-your-photos