Some of the books that I have.
The Watch - Gene Stone
ISBN: 978-0810930933
Marking Time - Michael Korda
ISBN: 978-0760735763
Wristwatches - Armbanduhren - Montres - Gisbert L. Brunner & Christian Pfieffer-Belli
ISBN: 3829006608
AUTOMATIC Wristwatches From Switzerland - Heinz Hampel
ISBN: 0887406092
AUTOMATIC Wristwatches from Germany, England, France, Japan, Russia, & the USA - Heinz Hampel
ISBN: 0764303791
The Best of Time Rolex An Unauthorized History - James M. Dowling & Jeffrey P. Hess
ISBN: 0764324373
Vintage Panerai Watches with History - Ralf Ehlers & Volker Wiegmann
ISBN: 978-3000222184
Legendary Watches - Giampiero Negretti
Panerai Historia From the depths of the sea - Giampiero Negretti
Free from Panerai Boutique (if they are still giving it away)
Revolution in Time - David S. Landes
ISBN: 978-0670889679
Panerai - Giampiero Negretti & Simon de Burton
ISBN: 978-2080305411