You are a career coach and resume writer. Write a detailed, 2500-word guide on writing resumes. The guide must cover: 1) Choosing the right format, 2) Writing a compelling summary, 3) Highlighting achievements with metrics, 4) Tailoring to the job description, 5) Using keywords for ATS, 6) Describing experience with action verbs, 7) Including education and skills, 8) Formatting for readability, 9) Proofreading and editing, 10) Examples of great resumes.