The new version of Visual Studio recently released with localized UI in Brazilian Portuguese, Chinese Simplified, Chinese Traditional, Czech, German, French, Italian, Japanese, Korean, Polish, Russian, Spanish and Turkish.
And as announced on the Developer Content Localization Team blog, the release also includes extensive localized reference material in these languages.
So whether you are running Visual Studio 2013 with localized UI or not, the MSDN Library Developer content provides localized documentation, code samples, videos and other reference material for developing apps using Visual Studio, ASP.NET, .NET Frameworks 4.5 and so on. Check out these reference resources here:
Since it can be disruptive to change between an English development environment and localized reference material, the pages include a handy feature that lets you quickly switch back and forth between the English and the localized text:
The feature also allows you to suggest better translations of the content.