Developer's Guide to Microsoft Enterprise Library, C# Edition
Microsoft Press; 1 edition | August 20, 2010 | ISBN-10: 073564523X | 272 pages | PDF | 3.3 Mb

The guide will walk you through the most common usage scenarios for each of the functional application blocks, including:

Improving performance by utilizing a local in-memory or isolated storage cache.
Calling into your database stored procedures and managing the results exposed as a sequence of objects for client side querying.
Incorporating cryptography mechanisms to protect your data.
Designing and implementing a consistent strategy for managing exceptions that occur in various architectural layers of your application.
Implementing system logging through the wide variety of out-of-the box logging sinks or your custom provider.
Performing structured and easy-to-maintain validation using attributes and rules sets.

The guide also demonstrates various ways of configuring Enterprise Library blocks. Let Enterprise Library do the heavy lifting for you and spend more time focusing on your business logic and less on application plumbing.