Yesterday, I completed my hand-bound sketchbook no. 29 - which is a 7" x 7" square sketchbook comprised of various watercolor papers: Fabriano Artistico 140 lb. soft-press paper; Saunders 140 lb. rough-press paper; and Strathmore 140 lb. cold-press paper.
Here is a quick tour of the sketchbook with a slower tour below.