bookwheels

Bookwheel, from Agostino Ramelli's Le diverse et artificiose machine, 1588

A bookwheel is a rotating reading device, first designed in the 16th century by Italian engineer Agostino Ramelli. It resembles a vertical Ferris wheel of lecterns or shelves, allowing multiple large books to be mounted at once. By turning a geared wheel, a reader could rotate between texts without lifting or repositioning heavy volumes. This mechanical aid anticipated modern notions of information management, enabling cross-referencing and comparative study with ease. Beyond practicality, the bookwheel symbolized Renaissance ideals of engineering, knowledge, and invention. Today, it is often revisited by artists and historians as a metaphor for multitasking and reading technologies.