Answer Miep Gies: "The answer to this fills a book. This book I wrote, assisted by author Alison Gold, called "Anne Frank Remembered".

Details book:
Anne Frank Remembered. The Story of the Woman Who Helped to Hide the Frank Family. By Miep Gies with Alison Gold. Simon and Schuster, New York 1987. A new edition of the book is expected for early 2009.