Anyone reading thru these and filtering out the promotion spam should consider taking a look thru. All his Amazon orders, which mostly are uninteresting sure, but scattered in there are books and eBook purchases dealing with some relevant and interesting-in-context topics.
Also, interesting that this one got by him (unopened, unread, filtered from inbox) and the timing of it being near his final arrest (coincidence, but still) https://www.jmail.world/eml/0b80588f551f3d097695f1c9507b6572