It is the basic core of the challenge, where participants choose books based on specific criteria. تنمية بشرية وإدارةHuman Development and Management تاريخ والشخصياتHistory & Characters أدب – روايات وقصصLiterature – Novels & Stories علم النفس – الفلسفة – الاجتماعPsychology – Philosophy – Sociology سياسة واقتصاد وإعلامPolitics, Economy and Media فكرThought تربيةEducation