Understand Your Audience
Start by defining who you’re targeting and what action you want them to take (click, sign up, buy). Images that resonate with a clear audience drive better engagement. Use audience insights (age, device, cultural context) to choose visuals, colors, and messaging that feel relevant and credible.
Design Principles That Work
Keep the composition simple: use the rule of thirds, strong focal point, high contrast between text and background, and a clear visual hierarchy. Limit fonts to one or two complementary typefaces and ensure readable sizes for mobile. Use brand colors and logo placement consistently to build recognition. For calls-to-action, make the button or text prominent and actionable (e.g., “Get 20% Off Now”).
Technical and Accessibility Best Practices
Export optimized file formats: WebP or compressed JPEG for photos, PNG or SVG for logos/illustrations. Aim to balance quality and load speed—keep display files under ~200–300 KB when possible for faster mobile performance. Always include concise, descriptive alt text for accessibility and SEO. Verify color contrast (WCAG AA) so text is legible for users with visual impairments.
Legal, Testing, and Measurement
Use licensed or original imagery; keep records of license terms. A/B test variations (headline, image, CTA color) on a representative sample to learn what converts. Track performance metrics—CTR, conversion rate, cost per acquisition—and iterate based on data. Document results and version assets so successful variants can be scaled.
Practical tools: Canva for quick assets, Figma/Photoshop for advanced design, and Google Optimize or platform-specific A/B tools for testing. Follow these evidence-based practices and iterate with data to create images that not only look good but perform.