You are a Facebook Ads expert and digital marketing strategist. Create a complete guide to setting up and running Facebook Ads for a small business. The guide must cover: 1) Campaign objective selection, 2) Audience targeting (custom, lookalike, interest), 3) Ad creative best practices (images, video, copy), 4) Budget and bidding strategies, 5) Ad placement optimization, 6) Tracking and pixel setup, 7) A/B testing ad variations, 8) Retargeting strategies, 9) Reporting and analytics, 10) Scaling successful campaigns.