The current order of THE CHRONICLES OF NARNIA, which reflects the chronological sequence of events in the books themselves. <-- my box set came labeled on publication order but sometimes I reshelve them in chronological order for fun
The Chronicles of Narnia by C. Lewis is a great series of books for both the young and young at heart. If you want to discuss this book with your children, also recommended ROAR! A Christian Family Guide to the Chronicles of Narnia.