Hardcover
(Viking Children's Books, March 15, 1979)
A book of this grade is generally well kept and is in good shape to read and store. Sturdy spine all pages intact physically. Solid cover. Might have acceptable shelve wear. Might (rare) have very limited notes.
A sturdy and interactive board book invites very young children to play along with the classic peek-a-boo game as baby peeks at his family through actual die-cut holes in the pages."