Reading a hard copy book, and reading a book on an iPad are slightly different experiences. What they both have in common though is that you must engage your imagination in the process.

In the beginning, we had a great deal of freedom, and Jerry wrote completely out of his imagination - very, very freely. We even had no editorial supervision to speak of, because they were in such a rush to get the thing in before deadline. But later on we were restricted.

In this drawing we just let our imagination run wild. We visualized Superman toys, games, and a radio show - that was before TV - and Superman movies. We even visualized Superman billboards. And it is all come true.