Candidates assess and select study materials appropriate for UPSC by considering sources that align with the syllabus and cover essential topics thoroughly. Popular reference books, online courses, and previous years’ question papers should be prioritized for comprehensive insight. Engaging recommendations from seasoned aspirants or mentors can guide choices. Additionally, candidates should seek materials that provide diverse perspectives on issues and facilitate critical thinking. Regularly updating the resource list to include current publications ensures relevance to the ongoing exam pattern and themes.