Two more covers of sketchbooks. The one at the top is recent, the one one the bottom was done while working on my adaptation of Dante's Inferno (the book, not the... game). Giovanni di Paolo (15th century) was one of my main inspirations, but I guess there is also some of Basil Wolverton in there.
Usually, I don't mind my books getting a bit dirty while in use, but I have recently been asked to send sketches for a rather prestigious publication, so I could not resist tidying them up. I had just bought some new acrylic colours anyway.