Angie please forgive me if this is too blunt or sounds rude, but there is no such thing as a dummy working with the genetics of chickens. I've bred and exhibited numerous species and breeds of animals and yes, even flowers. I can say with no hesitation or qualification, there is NOTHING as difficult as the genetics of chickens. Unless you want to become a student and are determined to breed and raise a particular variety or breed of chicken, I suggest you forget about purchasing any books on the matter as it will be a terrible waste of money. As I sit here trying to recall how I got from point A to this point, I can't tell you. Only to say that it has been what feels like a very long road and I haven't even been at it very long compared to many other major breeders.If you'd like to get just a taste of what would be in store for you if you were to start breeding chickens, go to the library and take out or request a small book by Brian Reeder titled, "An Introduction to Form and Feathering of the Domestic Fowl." It's about as simple as it gets and that's not saying much. If you find that you are falling in love with the science and can't wait to get started breeding and/or improving a particular chicken, then I would look for a breed club and join. For me it's Cochins International because I'm passionate about Cochins and have picked the variety called Birchen to bang my head against.
Sorry I couldn't give you an A B C answer, but it is a true answer. Best of luck and let me know if you want to get on the band wagon.