In my studies (and travels) I have compiled a list of Exchange 2007 Books worthwhile of both investing and understanding the contents offered in written format. Here's my 'short list' of titles that should be in every Exchange System Engineer's Library:
Microsoft Exchange Server 2007 Administrator's Pocket Consultant - William Stanek
How to Cheat at Configuring Exchange Server 2007: Including Outlook Web, Mobile and Voice Access - Henrik Walther
Microsoft Exchange Server 2007: A Beginner's Guide (Network Professional's Library) - Nick Cavalancia
Microsoft Exchange Server 2007 Unleashed - Rand Morimoto, Michael Noel, Andrew Abbate, Chris Amaris and Mark Weinhardt
Lynn LunikIndependent Security ConsultantWindows(R) PlatformIT Pro Secure Corporationandexchangesummit.nethttp://itprosecure.com and http://www.exchangesummit.net blog <at> itprosecure.com
This Blog entry references required reading materials for the Exchange 2007 System Engineer. Specifically, if you are looking for good quality Exchange Powershell books, several references are available. If you have ever searched for sources of good Powershell
Required Exchange 2007 Reference Materials - Books for the Exchange System Engineer's Library In