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Galileo´s Thinking Hand represents a fundamental revision of the earlier work Galileo, the Artist published in 2007. The sections incorrectly identifying a forgery as the work of Galileo have been corrected. The work sheds light on the artistic aspects of Galileo´s research life, drawing on a greatly expanded documentational basis. New insights reveal Galileo´s working methods as he explored the moon, sun, moons of Jupiter, and the fixed stars.

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Contemporary biographies of Galilei emphasize, in several places, that he was a masterful draughtsman. In fact, Galilei studied at the art academy, which is where his friendship with Ludovico Cigoli developed, who later became the official court artist. The book focuses on this formative effect - it tracks Galilei´s trust in the epistemological strength of drawings. It also looks at Galilei´s activities in the world of art and his reflections on art theory, ending with an appreciation of his fame; after all, he was revered as a rebirth of Michelangelo. For the first time, this publication collects all aspects of the appreciation of Galilei as an artist, contemplating his art not only as another facet of his activities, but as an essential element of his research.

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Horst Bredekamp, Humboldt-Universität zu Berlin.

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Horst Bredekamp, Humboldt University of Berlin.

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