To improve coding and decoding skills for better analysis in UPSC studies, candidates can adopt several techniques. Engage with logical reasoning exercises and practice analytical questions regularly. Utilizing mock tests helps familiarize candidates with the exam format and time management. Joining study groups allows for collaboration and sharing insights on complex topics. Additionally, analyzing previous year question papers can help identify common patterns and question types. Furthermore, developing a systematic approach to reading and summarizing information aids retention and understanding, vital for critical thinking during exams.