Magazines are considered Non-Fiction but beware, many magazines are biased and have opinions in them. Be aware of the sources from magazines.
One of my favorite Non-Fiction books ever is "I Never Had it Made". This book tells the story of Jackie Robinson's life. Jackie was the first black player in the MLB. He is an inspiration to many people today.
The biggest difference between fiction and Non-Fiction is that Fiction isn't real and Non-Fiction is real.