I find it slightly amusing this appeared on my Twitter feed today as I finish up studying for my Office 365 exam. It is a great introduction into the Identity Models for Office 365, but even more important you can get access to Office 365 for IT Pros. This online guide is continually updated to match developments within Office 365. Authored by a team of MVPs, this book gives you the real world, independent view of Office 365 that Microsoft’s marketing materials don’t provide.