TITLE: Good books on theory of distributions
QUESTION [27 upvotes]: Hi all. 
I'm looking for english books with a good coverage of distribution theory.
I'm a fan of Folland's Real analysis, but it only gives elementary notions on distributions.
Thanks in advance.

REPLY [2 votes]: "Mathematics for the Physical Sciences", Laurent Schwartz, Dover 2008 is a simplified English language book that covers some (maybe even much) of Schwartz's theory of distributions. Very readable, helpful and interesting (also $19.95). The title sounds more general than it actually is--really is focused on distributions, and their applications.  Schwartz says in the preface: 'This work is concerned with the mathematical methods of physics'.