uml

UML 2 for Dummies
$29.99
If you just wanted to develop use cases using UML, this is not the book. I found it too overwhelming as it had too many class diagrams. It did not have much examples. Somebody loaned me the book 'Writing Effective Use Cases by Alistair Cockburn' as they suggested, it is a good book for what I was looking for. I will update this review as soon as I am finished reading that book.

UML Distilled: A Brief Guide to the Standard Object Modeling Language (3rd Edition)
$49.99
This is one of the best UML books available. Suitable for both the person new to UML and the seasoned practitioner. As the title suggests, focuses on the essentials of UML used for most projects and not the rarely used nuances. Be sure to get the 3rd edition with the coverage of UML 2.

UML 2.0 Pocket Reference (Pocket Reference (O'Reilly))
$9.99
An instructor recommended this booklet to the whole class as a good pocket reference to UML. I'm glad I followed his advice. This is a good thing to have around for easy reference.

Use Case Driven Object Modeling with UMLTheory and Practice
$59.99
The authors explain ICONIX process from ground up - a design methodology for object-oriented analysis and design. Recommended!

This book is not about UML. It is an application of UML. ICONIX process simplifies the use of UML diagrams and uses only 4 UML diagrams, rather than 14 UML diagrams, for the software development from requirement to testing.

For the introduction of OOA/OOD, I recommend "Applying UML And Patterns" by Craig Larman.