I have been writing reference books for half a century, in fields ranging from linguistics, women's health, and classical music. They have gone into numerous revised and expanded print editions, and five are available as e-books. The most successful of my recent books are the Ameican Heritage Dictinary of Idioms and the Facts o File Dictionary of Cliches. The oldest of my books still in print is the A to Z of Foregin Musical Terms, published by ECS Publishing, which was first published in 1971.