This two-day .NET Core Frameworks training class is designed to provide a sound introduction to.NET Core for programmers who already know the C# language. It is current to Visual Studio 2019 and .NET Core 3.0. The course focuses on core portions of the .NET Framework that are common across many application areas. It starts with an introduction to the architecture and key concepts of .NET. The course then discusses class libraries, packages, metapackages and frameworks. The following chapters discuss important topics in the .NET programming model, including metadata and reflection, I/O and serialization, delegates and events, memory management, processes and threads. The course concludes with a chapter on threading, which includes an introduction to the Task Parallel Library (TPL).