Children might not know Theodore Geisel’s birthday was March 2, but they know his nom de plume — Dr. Seuss, and the books that have become beloved by children of all ages. The students of Archbishop Ryan School for the Deaf and St. Lucy School for the Blind in Philadelphia celebrated the author’s birthday Feb. 28 with a read-along of a “Oh, the Thinks You Can Think” in American Sign Language. (Photos by Sarah Webb)