I highly suggest this book for all persons interested in obtaining an in depth understanding of Microsoft’s Exchange Server 2013. You can purchase the Kindle Edition or Physical Book on Amazon..
Below is the book summary from Amazon
With a focus on mailbox and high availability features, this book delivers the ultimate, in-depth reference to IT professionals planning and managing an Exchange Server 2013 deployment. Guided by Tony Redmond, a Microsoft MVP and award-winning author, you will:
Understand major changes to Exchange Server architecture
Get inside insights for planning your upgrade or deployment
Examine the new web-based Exchange admin center (EAC)
Take a deep dive into configuring mailboxes, distribution groups, and contacts; planning and managing the Managed Store; database availability groups; mailbox replication service; compliance, data leakage, and data loss prevention; site mailboxes; modern public folders