You can never read enough about Guerilla Warfare tactics and history.
I would urge everybody to invest in a flash drive where you can keep reference materials like this handy.
I would also urge all my readers to go over to Active Response Training and sign up for email alerts.
Every month they post Free Amazon Kindle e-books. The genre’s are mixed but mainly involve Prepping, Tactical Shooting, Self-Defense Strategies, Crime Awareness, Self-Help, Crime Fiction, Post-Apoc Fiction, etc. It’s a really easy way to build you a nice library of reading material for FREE. I have been doing it for a few years now and have over 1,000 titles in my digital library. (Heads Up: These books only remain FREE for a very limited time, so the best time to download them is the day you get the notification email!)