Library of Congress (LCCN, below) reports:
-- "502 p. in various pagings, [14] leaves of plates"
-- pp. viii-xv: Bibliography of Her Books for Children
-- series: Classics of Children's Literature, 1621-1932
"Classics of children's literature, 45"
--WorldCat OCLC 233978375 and 954243788 (meagre records selected for this point)
Illustrator Walter Crane may not be credited in the book.
For this ISBN as of 2019-09-16, Amazon reports hardcover format, as November (US) and January (UK).
Preface is on pp. v-vii.