Murach's C# 2015
This core C# book has been a favorite of developers ever since the 1st edition came out in 2004. So you can be sure that this 6th edition will deliver the professional skills you're looking for.
It's a self-paced book that shows how to use Visual Studio 2015, C# 6.0, and the .NET 4.6 classes to develop Windows Forms applications...whether you're new to programming or not. It's an object-oriented book that shows how to use business classes, inheritance, and interfaces the way they're used in the real world. It's a data programming book that shows how to create professional database applications using data sources, ADO.NET code, and the Entity Framework, as well as how to use LINQ to query data structures, from collections to arrays to datasets.
When you're done, you'll be able to develop 3-tiered, object-oriented Windows Forms applications the way the best professionals do. And you'll have the core C# and Visual Studio skills that you need to develop any C# application...whether for Windows, the web, or mobile devices.