Summary

Use this outline:

Introduction

• About the client
• Establish overarching business problem / objective

Body

• PSR (Problem -> Solution -> Results) - relevant to overarching problem (most important relevant features first. Front-load your case study)
• PSR - relevant to overarching problem
• PSR - relevant to overarching problem
• PSR - relevant to overarching problem

Conclusion

• Measurable results from solving overarching problem
• QoL improvements after solving overarching problem
• CTA
• Testimonial