One additional thing that I am now aware of because of a recent personal experience, is counterfeits. I recently received an O'Reilly book from Amazon that I am

One additional thing that I am now aware of because of a recent personal experience, is counterfeits. I recently received an O'Reilly book from Amazon that I am nearly certain is a fake (and sending back). If I didn't have another O'Reilly book to compare it to, it wouldn't have been so obvious. Apparently, Amazon is doing a terrible job at counterfeit technical books across the board. eg: https://twitter.com/fchollet/status/1550932671022239745?s=20 https://twitter.com/fchollet/status/1550932671022239745?s=20 I will now try to buy any books direct from the publisher or from a store like Barnes & Noble rather than Amazon.