UPSC provides guidelines regarding the use of study materials to ensure candidates focus on credible and relevant resources. It encourages aspirants to consult standard textbooks, recommended by experts in various subjects, to build a solid foundation of knowledge. UPSC emphasizes the importance of current affairs and suggests following reliable news sources and journals for updates. Moreover, it advises against excessive reliance on guidebooks or online materials that might not cover the syllabus adequately. Candidates are encouraged to develop their notes and critical thinking skills instead of rote learning, ultimately fostering a deeper understanding of concepts.