A Call to Action is a marketing term for any design to prompt an immediate response or encourage an immediate sale. It's typically a button or link that tells users what action to take next.

Effective CTAs often:

• Use action verbs (e.g., "Buy Now," "Sign Up," "Learn More")
• Create a sense of urgency (e.g., "Limited Time Offer")
• Stand out visually from the rest of the content
• Are placed strategically on the page

Best practices:

• Make CTAs clear and concise
• Ensure they're relevant to the content
• Test different versions to optimize performance (A/B testing)