What is the author's tone in Hell's Angel: The Life and Times of Sonny Barger and the Hell's Angels Motorcycle Club by Sonny Barger?

"Hell's Angel - The Life and Times of Sonny Barger" is written by Hell's Angels legend and founder Ralph "Sonny" Barger. The tone of the story is raw and blunt and hard-boiled. Barger does not hold back on the use of foul language and invectives. Apparently, Barger tells the story like he lived it. There is a swirl of bitterness and anger tinged oddly with pride, loyalty and even distorted patriotism. To say that reading this book is venturing into an unknown world is, in no way, overstatement.