Human body：50 lift-the-flap surprises Space：over 50 lift-the-flap surprises A lift-the-flap surprise! With lift-the-flap surprises. "With lift-the-flap surprises." The human body：a lift-the-flap book Lily Won't Sleep：a lift-the-flap surprise! Prehistoric poems with lift-the-flap surprises! "Over 50 lift-the-flap surprises"--Cover