I know, I know! Just about every book I work in has in some way become a pattern book, but I still consider the moleskine sketchbook as the one and only original Pattern Book.
I have been doing what I call grid drawings in it recently. That basically means I start out with drawing a 1 cm squared grid on the pages in pencil and then use the lines to make up a symmetrical type of pattern. After that I draw out that pattern in dashed lines, remove the pencil lines and colour everything in with markers.
Here are some of my latest spreads:
I'm not quite sure why these drawings are so satisfying to me or why I'm so obsessed with patterns in the first place, but I guess when it comes to art you just have to go with what you love. :-)
Wishing you all a wonderful and artsy day.