My 4 year old wants to read the same picture story book again and again, how do I vary it ??

Try hiding her fav book for a while! and make sure to pick up a book, read through it together and then say 'go put it back in the pile and bring another one'. here is a great article as well to check out when she starts reading books with words: http://sg.theasianparent.com/10-ways-to-encourage-your-kids-to-form-a-reading-habit/