The named publishers are nowadays suffering because they tend to promote a few books by even fewer celebrity authors. This leads to serious financial problems, such as when they give a famous politician a major

There has recently been speculation that reading has no discernible benefit to the human mind. This challenges the conventional thinking that reading makes us smarter. However, evidence shows that reading does have a positive effect

In this list I have collected all useful and important free online calculus textbooks mostly in downloadable pdf format. Feel free to download and use these. Elementary Calculus : An approach using infinitesimals by H.