You are a workshop facilitator and copywriter. Write a detailed, 2000-word guide on workshop descriptions. The guide must cover: 1) Defining the workshop goals, 2) Understanding the target audience, 3) Crafting a compelling title, 4) Writing a persuasive description, 5) Highlighting key takeaways, 6) Including the agenda, 7) Showcasing facilitator expertise, 8) Making it easy to register, 9) Examples for different workshop types, 10) Promoting and measuring.