All parents should read to their babies, most do. However, what to read and when to start can be confusing. 4-5 months is a practical time, since your baby probably has better neck support by this time. Reading clearly builds language and vocabulary skills as well as cognitive abilities.
It is best to start with a very simple book, usually with a single picture per page and very simple text, almost like flash cards. You can initially point out facts ("There's a dog." "Look, a red apple."). As your baby gets older (6+ months), you can pose a question, then answer it ("What is that? It's a dog!").
Your baby will likely have a short attention span and may want to chew on the book, but be patient. It is best to start with smaller board books with thicker pages. As he gets older, you can switch to cloth based books that are easier for him to turn the pages.
Learning and Development Skills:
- Language Development and Vocabulary