Two more TV stars celebrate the big day in a pair of board books. Guess Who Loves Blue! all of Blue's buddies do (from the Baby Blue's Clues TV show, that is). In Bear's Valentine's Day, starring the Bear in the Big Blue House, the hero's pals construct a greeting card (in a House that Jack Built cumulative narrative), which pulls out of the last page. ( Jan.) Copyright 2001 Cahners Business Information.