How Hitler’s ‘Mein Kampf’ became a bestseller in 2016 (CNN)In January 2016, the Institute of Contemporary History released the first reprint of Adolf Hitler’s “Mein Kampf” since World War II. One year on, the German publisher says the book has sold some 85,000 copies and spent 35 weeks on Der Spiegel non-fiction best-seller list. Dr.…