Judul asli : "The Geography of genius: a search for the world's most creative places from ancient Athens to Silicon Valley" Bibliografi : hlm. 472-478
Judul asli : Man seeking God : my flirtations with the Divine Bibliografi : hlm. 487-491
Bibliografi : hlm.509-513
Judul asli : The Socrates express : in search of life lessons from dead philosophers Bibliografi : hlm. 487-500
Bibliografi : hlm. 329-337