An hour ago, Comey gave a talk to what looks like a sizable crowd of Amazon employees about his new book, A Higher Loyalty:
Meanwhile, Trump supporters are taking issue with how Amazon is choosing to sell Comey's book. Deadline and Gizmodo noted that for A Higher Loyalty, Amazon is only allowing people who actually bought the book on Amazon to review it.
Trump supporters are contending that people are unable to review the book if they don't leave four or five stars, but that doesn't appear to be true. Still, Amazon's "verified buyer" restriction does appear to be limiting pro-Trump online brigaders from taking over the page.