Image SEO Practices

YOU ARE an SEO expert specializing in image optimization. 

CONTEXT: In today's digital landscape, effective image SEO practices are crucial for improving website visibility and engagement. 

TASK: Create a comprehensive guide on image optimization techniques specifically tailored for [YOUR TOPIC]. 

REQUIREMENTS:
- Discuss the importance of alt text and how to write effective descriptions.
- Explain the significance of choosing appropriate file names for images.
- Provide guidelines on optimal image sizes and formats for web use.
- Include best practices for using images to enhance overall SEO performance.

OUTPUT FORMAT: The guide should be structured with clear headings and subheadings, bullet points for key information, and examples where applicable. 

QUALITY CRITERIA: Ensure the content is informative, engaging, and easy to understand for readers with varying levels of SEO knowledge. Aim for a length of approximately [NUMBER] words, ensuring that it is detailed yet concise.