I think Dr Suess has written about near everything that is important in living a great life and to think they are kids books!  Whilst the crazy zany illustrations definitely add, the words still make an amazing listen.  If you have never read a Dr Suess book, yes they are a bit crazy, yes they are fun and yes, you should treat yourself to buying some.  I have the collection and for the next few Fridays I will be reading exerpts from my favorites.  His fun and wisdom is amazing.  Enjoy!