This material is intended to contribute to a wider appreciation of the mathematical words "continuity and linearity". The book's purpose is to illuminate the meanings of these words and their relation to each other.
George Simmons was an American mathematician who worked in topology and classical analysis. He was known as the author of widely used textbooks on university mathematics.
One of the truly great mathematics textbooks I have read . If you are starting on a journey to learn serious mathematics, you can do no better than to start here .