Among the chiropractic books, almost all the fundamental texts are in English:
Chiropractic texts database (divided by topics)
However, for those seeking an authoritative introduction to chiropractic we recommend:
Chiropractic (2003) by Jean-Pierre Meersseman
For those instead interested in particular in the profession of chiropractor or chiropractor, the only text translated into Italian (although now to be found in the library) remains:
The chiropractic profession (2004) by David Chapman Smith