C sharp (computer program language)

Head first C#

Andrew Stellman, Jennifer Greene.

Beginning ASP.NET 1.0 with C [sharp]

Rob Birdwell ... [et al.].

Professional C#

Simon Robinson ... [et al.].

Model-based software testing and analysis with C♯

Jonathan Jacky ... [et al.]

Pragmatic unit testing: in C# with NUnit

Andy Hunt, Dave Thomas.

Beginning C# 6 Programming with Visual Studio 2015

Jon D. Reid, Benjamin Perkins, Jacob Vibe Hammer

Programming C[sharp]

Jesse Liberty.

Essential Algorithms: A Practical Approach to Computer Algorithms Using Python and C#

Rod Stephens

C# 2010 all-in-one for dummies

by Bill Sempf, Chuck Sphar, and Stephen Randy Davis

Professional C# 2008

Bill Evjen, Jay Glynn, Morgan Skinner, Karli Watson, Christian Nagel