Any reliable tutorial / book on using Arduino Zero?

Hi to everybody,
I am an old user of Arduino UNO and similar AVR boards.
Recently I purchased an Arduino Zero.
I successfully install the IDE and I wrote simple programs.

My problem is that I would like to push forward my knowledge in the use of such board,
but I have been frustrated by the apparent lack of any any reliable documentation on the Internet on this board.

Is there anybody which could give to me any suggestion?
Thank you
Michele Maris

Hi, for extensive information on the Zero you should refer to the topic "changing PWM frequency"

http://forum.arduino.cc/index.php?topic=346731.0

where Martin L has done and is doing a wonderful job with assistance & suggestions. For a basic tutorial you can refer to the following:

https://www.picotech.com/support/topic24051.html

Cheers,

glovisol

I just see it, very nice tutorial, and in line with what needed for the project I am currently following.
Thank you very much
Michele