The Mrs. Piggle-Wiggle Treasury Book by Betsy Macdonald is a delightful collection of humorous stories geared towards juvenile fiction readers. Published by HarperCollins in 1995, this hardcover book features illustrations by Hilary Knight, adding a fun and whimsical touch to the tales. With a total of 392 pages, this book is a treasure trove of entertaining stories that will surely capture the imagination of young readers and leave them with a smile on their face.