Books on ODE/PDE for self study.

Two recommendations and a request:

15 years after college, I'm self-studying differential equations to get
back up to speed.

* RECOMMENDATIONS

Schaum's "Differential Equations" by Bronson was excellent. It's all on
ODEs. The theory is clear and the exercises well designed. This is NOT
true of some Schaum books.

Schaum's "Advanced Mathematics" by Spiegel is also good. It includes
two chapters on ODEs and one on PDEs.

* REQUEST

I hear the Schaum book on PDEs is NOT good, unfortunately.
Is there a Schaum-style book (meaning good for self study with lots of
well-designed excercises) for PDEs? In particular, I'm interested in
basic stuff, such as an exhaustive treatment of the linear 2-order,
2-variable PDE:

fxx + A fxy + B fyy + C fx + D fy + E f = g(x,y)

where f = f(x,y) and A--E are constants.

.

Relevant Pages