A review by juddicted
Warum sind wir eigentlich noch nicht tot? : Alles über unser Immunsystem by Idan Ben-Barak

Besides 2 sexist comments - one of them coming from the inner child of the author, rather than the scientist he should be in this book - it is a very good book to start learning about the immune system if you are not looking for all scientific details, but are looking for a general overview. :)