The Diagram Prize, also known as the Diagram Prize for the Oddest Book Title of the Year, is awarded annually to a book with an unusual title.

Data viz isn’t just a modern-day craze. Designer Manuel Lima, author of The Book of Trees, discusses the origins of the tree diagram.

Lessons on language families are often illustrated with a simple tree diagram that has all the information but lacks imagination. There’s no reason linguistics has to be so visually uninspiring.