This book was published after the series was finished but chronologically it’s the fourth part. It consists of letters from Anne to Gilbert and some are very long and unessential. So you could easily skip the part but the language, characters and writing style are just too nice!!
ANNE OF WINDY POPLARS BOUND FO (Anne of Green Gables Novels, Band 4)von L. M. MontgomeryTurtleback Books

