Images play a critical role in SEO beyond just visual appeal. With Google Lens, AI-driven search, and Core Web Vitals shaping modern rankings, image optimization is now essential for visibility, engagement, and conversions. In this expert-level guide, we’ll dive into advanced Image SEO strategies for 2025—from writing alt text that boosts relevance, choosing next-gen formats like WebP and AVIF, implementing structured data, to leveraging AI tools for smart compression. You’ll also learn how to optimize for Google Discover and Image Packs, reduce CLS shifts, and prepare for a visual-first search ecosystem. Whether you run an eCommerce store, a content-heavy blog, or a corporate website, mastering image SEO can dramatically improve your traffic and brand authority.