Geometric Patterns has 50 original repeating pattern designs, mostly of medium difficulty. It’s suitable for adults and older kids, and is also available in physical format from Amazon (click here for all buying links and to see previews of the designs).
The Etsy and Gumroad versions of the book have the same content, but for Etsy I had to split it into three separate PDFs, to comply with their file size limits. So if you prefer a single PDF, Gumroad is best. Any difference in the price between the two sites is due to currency conversion, since my Etsy store is in GBP.
I’ll be adding digital versions of my other books as soon as I can 🙂