Kindle paperwhite

I bought Kindle paperwhite on the web shop. It reached me yesterday. As I don't prepare the wi-fi system, I downloaded electronic bookmark on PC. And I sent the data to Kindle later through USB.
It is useful more than I'd imagined. As it is guarded by password, my hobby of book is kept secret. It is the best function for me.  If I prepare the wi-fi system, it will be more useful.