Click & Drag: A Field Guide to Digital Design (and other things that designers do in secret) is a fictional book written by an imagined author Steve Kremstein​​​​​​​
The book is meant to be a handy field guide that can work as an on-the-job reference manual. Scaling at only 6 in x 8 in, this guide works well as a casual read, but can also go with you as you work on your creative career in design. 
Image borrowed from
The cover design is inspired the Dottyback, a saltwater fish which carries this distinct color scheme. The colors are meant to be stunning and striking, while immediately drawing you the the content. 
The mockup that I used to display the cover design was created by Mark Monciardini from