DirectX 9 or DirectX 10 for starters?

Question

I want to do projects to make my resume more appealing to game companies. So I am going to start buying books. But I don\'t know rather to read DirectX 9 or 10 api books to

Answer 1

TBH further to OneOfOne's comment if you know how to do 3D development in GL, D3D9, D3D10 or D3D11 then you can transfer those skills to any of the others with a little bit of work.

Personally I'd aim for D3D11 as that way you are learning the cutting edge. You'll find you'll be able to do GL, D3D9 or D3D10 with a little work. Do enough work on the theory and you'll discover that its not even that hard to transfer the skills to a fully software engine.