geertvanhorrik 

Catel.Core library which provides the core building blocks required when developing professional applications. This package contains IoC components, logging, argument checking, message mediators and much more!

Catel.MVVM library which contains the MVVM framework available in Catel. This MVVM framework solves actual real-life development problems when using MVVM for professional applications written in any XAML... More information

Catel.Extensions.Controls library which contains user controls, such as the StackGrid.

Catel.Extensions.Prism4 library which contains helper classes for prism.

Catel.Extensions.FluentValidation library which contains fluent validation extensions.