The book "Professional Microsoft SQL Server 2012 Administration" is a guide for experienced database administrators on the new features of SQL Server 2012. It covers topics like performance tuning, backup and recovery, scaling, replication, clustering, and security. The book also discusses managing and monitoring SQL Server, automating administration, using SQL Azure for cloud computing, and improving data warehouse performance. It highlights changes to SQL Server BI tools and includes real-world examples and best practices. If you're a DBA looking to work with the latest SQL Server version, this book is a must-read.