First published in 1938, this book about the ice-obsessed Mr. Popper and his houseful of penguins is still a favorite of both children and adults. Though he always dreamed of exploring the polar regions -- and he keeps in touch with Admiral Drake -- Mr. Popper and his family never expected a package containing a penguin to appear on their doorstep. Soon they have twelve penguins and a performance act. A comic adventure, geared for kids ages 9-12.  (ANT134, $6.99)