 When Amazon released the first Kindle reader in November of 2007, they sold out in just five hours. It took five months to replenish the inventory. By then, the excitement slowly died. Not the Kindle, just the hype. But over the past two years, the Kindle has been quietly making a comeback. Why? Rediscovered by Gen Zers on TikTok. Kindle sales grow each year by double-digit percentages.