From the earliest days, talk with your child about what you are reading. You might point to pictures and name what is in them.
When he is ready, have him do the same. Ask him, for example, if he can find the little mouse in the picture, or do whatever is fun and right for the book. Later on, as you read stories, read slowly and stop now and then to think aloud about what you’ve read. From the time your child is able to talk, ask him such questions about the story as, “What do you think will happen next?” or “Do you know what a palace is?” Answer his questions and, if you think he doesn’t understand something, stop and talk more about what he asked. Don’t worry if you occasionally break the flow of a story to make clear something that is important. However, don’t stop so often that the child loses track of what is happening in the story.