Working with Sebastian on the cover for my leanpub book was a lot of fun! We talked through some concepts then he quickly iterated the design, the whole process took just a couple of days. I'd recommend leanpubcovers to any leanpub author.
This cover was a blast to make. During our first contact, I showed Graham a set of vintage book covers on Psychology and Mathematics. Since his book is organized into layers, we decided to go down the path of exploring abstract drawings to match the structure of the book.
After a few different samples, we settled on diamonds shapes to describe the architecture of the book and a path of arrows that make up the movement from concrete programming concepts into more abstract notions like critical analysis and business.