In the same vein as Sis's Follow the Dream (1991), this work, subtitled ""Galileo Galilei,"" artfully introduces the fascinating life of Galileo to young readers. Central to this portrait of Galileo's life is the refinement of the telescope for mapping the heavens, leading him to challenge the Ptolemaic belief that the earth was the center of the universe. Sis tells in broad, graceful strokes this extraordinary scientist's story. Augmenting the text are notes and quotes from Galileo's own writings, scrawled in calligraphic style, along with timelines and other chronologic events for more inquisitive readers. Drawing on classic cartography, mapped charts, and 17th-century symbols and images, SÂ¡s creates starlit, fresco-like paintings and detailed drawings rich with humor and visual clues. The author's take on his exceptional subject avoids the usual, eye-glazing list of accomplishments and gives readers Galileo himself, who always had stars on his mind. A small ink illustration on the copyright page, of an open book with heart and mind taking flight, deserves special attention.