Every business has reams of business data locked away in databases, business systems, and spreadsheets. While you may be able to build some reports by pulling a few of these repositories together, actually performing any kind of analysis on the data that runs your business can range from problematic to impossible. Pro SQL Server 2008 Analysis Services will show you how to pull that data together and present it for reporting and analysis in a way that makes the data accessible to business users, instead of needing to rely on the IT department every time someone needs a different report. Pro SQL Server 2008 Analysis Services is aimed at developers who want to take advantage of SQL Server's built-in business intelligence functionality to mine their data and produce reports that can drive business forward in right and profitable directions. The book is secondarily aimed at database administrators charged with supporting analysis services solutions.
A great start for SSAS; well-organized and easy-to-follow. Authors know how to explain the topic very well. A good reader combines and follows the book by more advanced resources (specially for MDX and enteprise management) to have a grasp over the topic.