I want to start reading to my child. Any rules? How long should I start reading to her? She is 6 months old. Is it too early to start reading?

No, not too early for reading. You should read for at least 30 mins daily. When ur reading u should be expressive. Give the characters voices. Your baby is probably too young to understand the story but helping ur baby understand different sounds. When reading you should also point to the different pictures. You can name them, describe the Colour etc. It's the language experience that counts and not if they can understand what you say. Also use the opportunity for lots of hugs, giggles and laughter. This will set the right, happy mood for reading time.