I decided to put the socks that I have made and kept for myself in one picture to show that I am a serious sock knitter (or maybe just obsessed with knitting socks). I figured that with the socks that I have given away I have made 27 pairs since my first sock class in 2004. I have started out using double points, then moved on to using two circular needles, Magic Loop, and now two socks on one Magic Loop.
I like all the different ways of making socks. My friend the Princess won't use double points. "No way, No how, Never for anything. Why when there is Magic Loop. Are you out of your mind". Oh well I guess she can't be good at everything.
I own more books on socks than I care to admit. I like the ones that show you how to made the socks your own. They have stitch dictionary's to help you figure out other designs you might want to use with their basic patterns. Sensational Knitted Socks, More Sensational Knitted Socks both by Charlene Schurch and the Vogue knitting's The Ultimate Sock Books are two good ones.
For different types of sock knitting I like Socks Soar on Two Circular Needles by Cat Bordhi. Socks Soar has a really good basic sock pattern that can be used for two circular or one long needle.
If you like to do two socks at one time The Magic Loop by Sarah Hauschka and Knitting Circles Around Socks by Antje Gillingham would be my choices. Magic Loop is about doing one or two socks on one long 40" needle. Knitting Circles is about using two circular needles about 12-16" long to do two socks at one time.
I forgot there is a way to do two socks on one time on double points but I don't have a book on that. I guess it done with one sock inside the other.
You can check your local library for sock knitting books. Check them out and work with them. It's the best way to see which one you want to buy.