Spanish educator and inventor Ángela Ruiz Robles is best known for creating the earliest iteration of the e-book, which was mechanical rather than digital.
Ruiz Robles wanted to lighten the weight of the books carried by her students, so her devised a device consisting of a series of text and illustrations on reels, all under a sheet of magnifying glass with a light for reading in the dark, and was to incorporate spoken descriptions of each topic. Her device was never put into production but a prototype is kept in A Coruña National Science and Technology Museum.
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