OpenIntro StatisticsAmazon KDP raised book print prices by ≈40% in mid-June, and they also subsequently removed free shipping from our books by pushing the minimum free shipping price up to $35 from what had been $25 (our account appears to be in the early phase of this price hike rollout, so others should expect to see this change rolled out to them soon). These changes will net Amazon over $50,000 per year from sal
