MAREK DABROWSKIAt the onset of the mass protests in 2010-2011, many politicians and experts suggested that Arab countries could learn from the experiences of the post-communist transition of the early 1990s. However, the geopolitical, historical, and socio-economic context of the Arab transition was different in many respects from that of the former Soviet bloc countries 20 years earlier. These differences became even more obvious fi ve years later, in early 2016, when most Arab transition attempts ended either in a new wave of authoritarianism, or protracted bloody confl icts. Nonetheless, there are some common lessons to be learnt from the history of both transitions. They concern interrelations between the political and economic transition, the role of institutional checks and balances and the rule of law, the speed of reforms, the dangers of ethnic and sectarian confl icts, and the role of external support.