There are a few books on the market today, which are extremely useful to the first-time and experienced Berner owner. They are also very uself for the prospective Berner owner, as they give an excellent insight into what owning a Berner is all about.
Bernese Mountain Dogs by Lillian Ostermiller
The Complete Bernese Mountain Dog by Jude
The New Bernese Mountain Dog by Sharon Chesnutt Smith
The Bernese and Other Mountain Dogs by G Ludwig, C Steimer & E D Crawford
The above are linked to their respective pages at Amazon.com. Below you will also find a search engine with which you can search out other titles.