I’m (re)reading a lot of Brad Warner’s books during these holidays. If you ever feel like learning about no-bullshit hardcore Zen buddhism from a punk bass player and ordained Zen master (who hates that term), I can recommend: Sit Down and Shut Up, Don’t Be a Jerk and It Came From Beyond Zen, in that order. You can also try Hardcore Zen, the original work
Brad explains Zen itself and Eihei Dōgen’s Shōbōgenzō in plain English so you don’t have to spend 30 years studying classical Japanese. Dōgen was about 800 years ahead of his time, so reading him now is excellent timing
The books are short and if they pique your interest, you can always follow up with the very compact, unrelenting and and intense Mastering the Core Teachings of the Buddha by Daniel M. Ingram.