It's a Noah Van Sciver sketchbook! Drawn between 2013 and 2017! 156 pages!
"Covering Noah's time in Denver, White River Junction (as a Fellow of the Center For Cartoon Studies), and Columbus, Ohio, the sketchbook is a record of his failed relationships, sketches of his surroundings, strange recollections from life, and portraits of fellow artists."
There are plenty of actual comics and cartoons filling these pages, in addition to life drawing, lists and more. A nice variety that is enjoyable to leisurely peruse.