This repository is a curated collection of documents (PDFs, images, and Markdown) related to the graduate entrance examination (Kaoyan), recommendation-based admission (Baoyan), and doctoral application (Kaobo) for the Institute of Information Engineering, Chinese Academy of Sciences (IIE CAS). It contains historical exam papers, admission statistics, interview experiences, summer camp lists, and detailed introductions to research labs. The repository serves as a knowledge base for prospective students, but contains no executable code, data pipelines, or analytical models. It is purely an archival resource with no software engineering or data engineering components.