Looking for some summer reading If you're looking for some summer reading, there's a growing number of math books available for either reading online or downloading. Check out Edwin H. Connell's Elements of Abstract and Linear Algebra or the excellent A=B by Marko Petkovsek, Herbert Wilf and Doron Zeilberger. On a completely different subject, the book that arguably started modern science, Copernicus' De Revolutionibus preserved in the Jagiellonian Library in Cracow is available to view online.