These are some books that I have found immensely useful in my professional life, in particular in applications development. Perhaps you will too.
Design Patterns. Elements of Reusable Object-Oriented Software. Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides. Addison-Wesley (1994)
Programming Pearls. Jon Bentley. Addison-Wesley (1986)
Just get it. Read it on the way home!
Design and Evolution of C++. Bjarne Stroustrup. Addison-Wesley (1994)
Fascinating study of the kind of considerations that drive language design.
The Mythical Man-Month. Frederick P. Brooks. Addison-Wesley (1995)
One of the most readable sets of essays on software project management and development.
Bringing Design to Software. Terry Winograd. Addison-Wesley (1996)
What we typically don't worry about in an application - but should.
BUGS in Writing. Lyn DuprŮ. Addison-Wesley (1995)
Highly recommended for programmers writing technical documentation.