Mr. Popper's Penguins

The dominant trap is volume of reprinting: the book ran to the 37th, the printed pricet and 50th printings and beyond, all retaining the 1938 copyright date, which is why copies are routinely advertised as 'first edition, 37th printing.' Read the reprint line, not the date. Jacket copy is a corroborating tell — later jackets carry accumulated review snippets, a higher flap price, and advertise the 1939 Newbery Honor. A widely-circulated student bibliographic page describing a 'Forty-first Printing' copyright page and a the original price jacket is describing a late reprint and should not be treated as a first-edition description.