I pulled an old sketchbook of my bookshelf and realised it was from 10 years ago. I've gone back to this one sketchbook many times. I like the freedom in the drawings, really playing around with different ideas and styles, experimenting.
I like the one below. It's drawings of things I saw in a café on holiday. I can see here that I was trying out subjects and a drawing style that I still have now, though it was a lot more rough then.
I used to be really into drawing birds.