In this volume, Lucyna Harmon compares the episodes that constitute the British TV series Agatha Christie’s Poirot with David Suchet with their precursor texts, with the aim of establishing most salient changes between both. These changes are grouped by underlying patterns into twenty-four categories. Their list includes activation, anticipation, amelioration, bohemisation, co-option, depopulation, entertainisation, glorification, human softening, importation, marital reduction, melodramatisation, multiplication, pejoration, political correction, political redirection, politicisation, reviving, romanticisation, social adjustment, social alerting, social correction, teaming and thrill intensification. These categories are postulated as adaptation strategies, suitable as a research tool in adaptation studies.