This book is written in a simple, easy to understand format, with lots of screenshots and step-by-step explanations. If you are a .NET developer looking forward to building access control in your applications using claims-based identity, then this is the best guide for you. This book is also an excellent choice for professionals and IT administrators trying to enable Single Sign-On across applications within the enterprise, and in the cloud spanning interoperable platforms. No previous knowledge on the subject is necessary, however a strong foundation in the C# programming language and .NET Framework 4.0 is expected. A good understanding of authentication and authorization concepts (Windows and Forms based) in .NET would also help