So I usually try to keep things cross platform by using OpenGL and other non-proprietary libraries, but my current job has me poking around in a lot of DirectX code.While there's quite a few similarities and I was able to be productive relatively quickly, I would like something that gives me an overview of how the API works.
So I am looking for a book that's good for someone who uses primarily UNIX and cross platform APIs and wants to start working with Win32/DirectX11.