Hey, I am looking for some recommendations on books covering partial differential equations and another one on complex analysis. I don't have a lot of extra money, so I am kind of hoping that someone has experience with some of the Dover books, and could possible recommend any of them? I have looked at many of them on amazon.com, but I simply have no idea which ones are "better" or "worse". I am very interesting in both the theory and applications of partial differential equations and complex analysis. Currently, I do have: An Introduction to Partial Differential Equations by Matthew P Coleman and Fundamentals of Complex Analysis by E. B. Saff and A. D. Snider (these are the books I have from my courses in them) Thanks for any recommendations! -Scott PS: The book I have on Partial Differential Equations is a first edition book and I have found many mistakes throughout the book (mistakes within the book as well as incorrect answers to selected problems).