If Rocks Could Sing: A Discovered Alphabet

McGuirk has assembled a collection of 26 rocks shaped like every letter of the alphabet, plus many more shaped like objects for each letter. "A is for Addition," McGuirk starts, with a chalkboard slate on the right photographed with rocks shaped like a one, eight, an equal sign, and a nine (a magnet stands in for the plus sign). For "D," there's a dog-shaped rock with a collar, and "G is for Ghost" shows 16 amorphous stones with wailing mouths and empty eyes. It's an unusual labor of love that may have kids checking the ground for familiar shapes. All ages. (May)