"Drawing on a wide array of archival and documentary sources, the authors of this collection of highly readable essays shine a bright light on the life and work of the Tudor mathematics educator Robert Recorde, the man best known for having invented the equals sign. It is a fascinating read for those interested in the Tudor period, the history of science and the history of mathematics, and it will ensure that Recorde is remembered for much more than just the invention of a mathematical symbol." June Barrow-Green, The Open University "Although best known for inventing the equals sign, Robert Recorde made many other significant contributions to the development of mathematics and science. As this book amply demonstrates, his writings made arithmetic, geometry, algebra, astronomy and 'physick' widely available in English to those for whom the classical texts of the scholar were inaccessible. It can be warmly recommended as a most welcome addition to the historical literature. " Robin Wilson, Pembroke College, Oxford University and President, British Society for the History of Mathematics