A book is provided which comprises front and back covers (12,14) and a plurality of pages (16) bound between the covers. A plurality of the pages (16) each have an aperture (18) and the resulting plurality of apertures cooperate with the back cover (14) to define a recess (22) extending through the pages. The book further comprises a container (24) attached to the back cover (14) so as to be located in the recess (22). The book may have multiple recesses and associated containers.