This book brings together most of the papers presented at the 30th edition of the International Annual Meetings in Political Studies (now called Estoril Political Forum), which started in 1993, in Arrábida. This 30th edition took place on June 27-29, 2022, at the Palácio Estoril Hotel – the hotel of the Anglo-American allies during World War II. The general title was Confronting the Authoritarian Challenge.