This hardcover book titled "Daylilies - A Fifty Year Affair : The Story of a Society and Its Flower" by Frances L. Gatlin, published by American Hemerocallis Society is a must-have for gardening enthusiasts. It delves into the fascinating world of daylilies and the society dedicated to them. The book, written in English, covers topics ranging from the history of daylilies, their different varieties and how to grow and care for them. It is an informative and engaging read for anyone interested in flowers and gardening.