What you need for this book
In order to make full use of this book, you should have a development machine where you can run the latest version of Windows with an installation of Visual Studio Community 2013.
The Visual Studio Community 2013 edition is a fully featured IDE that contains everything you need in order to run the examples in this book and get started with F# development. You can download it from Microsoft at http://www.visualstudio.com/en-us/news/vs2013-community-vs.aspx.
There is an even better test runner provided by JetBrains Resharper that will increase productivity when running test-driven development, but it is not necessary for you to learn about in this book. This book will provide only one example of testing with Resharper, and the rest of the examples are done by the built-in tools of Visual Studio Community 2013 at https://www.jetbrains.com/resharper/.