I love finding images of artists’ sketchbooks. I was familiar with some of Egon Schiele’s paintings, mostly portraits and figures, but a recent book focuses on his landscapes, and as a bonus, features some images of his sketchbooks:

I wish I’d been able to see the exhibition at the Neue Galerie– the book was the exhibition catalog, so I assume the sketchbooks were part of what was on view. Unfortunately it ended in January 2025, but the book is still available: Egon Schiele: Living Landscapes.