From the Jan Pienkowski Papers.; Original illustration on tracing paper with red markings and author's notes from Jan Pienkowski's Haunted House (1979). 23" x 16"
From the Jan Pienkowski Papers.; Author's notes written on the back of an envelope by Jan Pienkowski for his "pizza manual" in Pizza!: A Yummy Pop-Up Book (2001). 8.5" x 12"
From the Jan Pienkowski Papers.; First two pages of hardcover "sketch dummy" from Jan Pienkowski's ABC Dinosaurs and Other Prehistoric Creatures (1993). 22.5" x 8" x 10"
From the Jan Pienkowski Papers.; Page (p. 2) from hardcover dummy with hand-colored spreads and pasted text from Jan Pienkowski's ABC Dinosaurs and Other Prehistoric Creatures (1993). 22" x 6.5" x 11"
