40 page self ended picture book thumbnail template

The title pretty much says it all, but here's a little blank template for thumbnailing a 40 page self ended picture book.  A 40 page self ended book has page 1 and 40 glued down to the boards on the front and back of the book, and pages 2 - 3 and 38 - 39 are illustrated endpapers. Anyhow, doing thumbnail sketches can be a very handy way to plan out a picture book dummy.