My first book, Geometric Algebra for Electrical Engineers is available in black and white, for $14.50 USD (softcover), or $22 USD (hardcover) an e-book from leanpub for $5+ (set your own price).  There is also a discussion forum for this book on leanpub, as a (color) PDF, for $0, or as latex (see below.) The … Continue reading Geometric Algebra for Electrical Engineers.