Everything I should know when buying a camera?

I'm getting a camera this Christmas and I was wondering if there are things I should look for when buying the camera. Should i get one that just take high quality photos or should i look at things like shape, size, etc? And i
Which is better between Nikon and Canon?

Big fish or small fish

hey you eat whatever is tasty
so go on for a hd camera whether big or small size is not imp

if later photos won't be gud the purpose of buying camera losts

canon is a gud choice

I'd ask for a book on photography for beginners.