Written by a prominent analyst Paul R. Halmos, this is the most famous, popular, and widely used textbook in the subject. The book is readable for its conciseness and clear explanation.
This emended edition is newly typeset and corrected.
The free PDF file available on the publisher's website www.bwpest2018.org
The author obtained his Ph.D. from the University of Illinois at Urbana-Champaign. He worked for the Institute for Advanced Study, the University of Chicago, . . . . He was recognized as a great analyst and mathematical expositor.