For Halloween, hang out with A BAT CAVE: An Abecedarian Bedtime Chronicle, a 41-word story exploring bat habitats and behavior and ending with bat trivia.View the book trailer. Check out the study guide and lesson ideas.

Read aloud THE LIBRARY GHOST, a rhyming fantasy with cameos by classic storybook characters. The riddle behind the plot centers on this Emily Dickinson poem. Send your young ghost-hunters on a Web quest for haunted libraries. Some have webcams for “live” sightings.

For a Halloween unit on picture book biographies, have students dress as the books’ subjects. Is there a Matthew Henson, Jesse Owens, Martin Luther King, Jr., Arturo Schomburg, Harriet Tubman, Gordon Parks, Dorothea Lange, John Coltrane, Leontyne Price. Fannie Lou Hamer or Lena Horne in your school?

In the spirit of masquerade, guess who.