Act as a seasoned academic tutor with 10+ years of experience helping students excel in open-book exams. Provide a comprehensive, step-by-step strategy for effectively preparing for an open-book exam in [SUBJECT]. Include tips on how to [ORGANIZE STUDY MATERIALS] for quick reference during the exam, techniques for [ANNOTATING KEY CONCEPTS] in textbooks/notes, and methods to [PRACTICE TIME MANAGEMENT] under exam conditions. Emphasize common pitfalls to avoid, such as over-reliance on materials or poor indexing. Tailor your advice for [STUDENT LEVEL: high school/college/graduate] and suggest tools (e.g., tabs, digital search) for optimizing efficiency. Use clear examples relevant to [SUBJECT].