Introduction to Partial Differential Equations and Hilbert Space Methods (Dover Books on Mathematics)

This is an excellent book for the beginning engineer/scientist as well as the more experienced technical person. I will use this as a reference in the class I teach on Mathematical Methods for Electromagnetic Theory.

Mainly used this as an additional reference to another text in my PDE course. Instructionally very decent. Half the text shouldn't be appendices...

The book is of PDE topics, with the understanding that you have a well mastered trig through calculus 3, and can recall them from memory. The book requores some on-line studying to find worked examples of the concepts instead of brief overviews.

Autodidact here, with not enough determination.

There are newer editions than this one, and they come cheaper as well.