The collection consists of materials collected by Dr. Margaret Mackey (1948-) and donated to the University of Alberta Libraries. It contains materials that have been collected by Dr. Margaret Mackey over the course of her lifetime and include books, videos, audio recordings, collectible items, electronic games, reports, ephemera, and some of her personal files. The materials contained in this collection relate to various children's book series that Dr. Margaret Mackey was interested in, including: Frances Hodgson Burnett's The Secret Garden, L.M. Montgomery's Anne of Green Gables, Philip Pullman's His Dark Materials, Lewis Carrol's Alice's Adventures in Wonderland, P.L. Traver's Mary Poppins, Louisa May Alcott's Little Women, L. Frank Baum's The Wizard of Oz, and Beatrix Potter's The Tale of Peter Rabbit. Along with those series, the collection also contains educational materials relating to mainly the teaching of English. As well as numerous personal files collected by Dr. Margaret Mackey, in the form of correspondences, news articles (print and online), teaching materials, personal writings, and materials related to publisher Pearson P.L.C. This collection contains the following series: Frances Hodgson Burnett and The Secret Garden (1949-2006), L.M. Montgomery and Anne of Green Gables (1985-2013), Philip Pullman and His Dark Materials (1995-2013), Alice's Adventures in Wonderland (1960-2012), P.L. Travers and Mary Poppins (1996-2014), Louisa May Alcott and Little Women (1933-2011), Education Materials (1950-2013), L. Frank Baum and The Wizard of Oz (1934-2017), Beatrix Potter and Peter Rabbit (1955-2013), and Personal Files (1977-2007).