At very young ages, kids enjoy the snuggling and the time spent with a parent or other caretaker. I have a picture of my father and my daughter when she was just over a year old, sitting on the couch together, with a Dr. Seuss book open before them. She is pointing a finger at something in the book.
Around that age, she had a sturdy cardboard book of simple nursery rhymes, with fanciful illustrations, which was one . As soon as she could talk, I could open the book to any page, and she could recite the rhyme.
I think that I started reading to her when she was three months old. Yeah, she watched Sesame Street and Electric Company, and I was usually watching them with her, and then we’d talk about the show, and I’d try to find stuff that related to the show, such as numbers or letters. But she got read to. And she associated reading with being the center of my attention (my husband rarely read to her). Even if the kid can’t understand what you’re saying yet, s/he DOES understand that getting read to is fun. And it’s a good way to unwind little kids before bedtime, which can sometimes be a problem.