The galley proofs arrived dated 21 February 1907 and Potter carefully read through them, making corrections where necessary and changes where appropriate. Twenty thousand copies were released in September 1907 in a small book format and another 12,500 the following December. Two different bindings were available: one in grey-green paper boards priced at 1/- and a deluxe edition in decorated cloth at 1/6d. The book was dedicated "to all Pickles—especially those who get upon my garden wall". "Pickle" was Potter's word for mischievous kittens, children, and her exuberant, free-spirited cousin Caroline Hutton. Potter received a copy of the published book and wrote to Harold Warne, "I am much pleased with "Tom Kitten". Some of the pictures are very bad, but the book as a whole is passable, and the ducks help it out."