If you’re keen on the technical stuff, in this video Oliver introduces us to the art of book-binding and how to make a ‘single section codex book’. Codex book-binding is an easy way to make a hard back cover sketchbook. The single section part of this term refers to how Oliver stitches the separate pieces of paper together. If this were a bigger hardback book you might have several of these stitched sections stacked together to form the book.
As you can see in the end shot, once you’ve mastered the technique of making a basic sketchbook, you can start to personalize it by adding layers to the front and back of the book and illustrating with your own work.