Elizabeth Bluemle from the Flying Pig bookstore in Vermont has a great post this week on the School Library Journal Blog, Shelftalker, about promotional materials -- what's useful -- and what people won't pick up and what people/ booksellers throw away.
Useful information for authors/ illustrators as well as publisher's reps.
(I've always loved LONG bookmarks (not those half-sized bookmarks) and pencils with advertising on them, myself. If you come to my signing at the Albert Whitman booth at ALA this summer, be sure to pick up both of these handouts. Even if you don't buy a signed book.)