A digital marketing portfolio needs three to five case studies, each structured as problem, approach and result, with real numbers and an honest account of what did not work.
TL;DR
- Three pieces is enough; five is plenty.
- Structure every piece as problem, approach, result.
- Show the working, including what did not work.
The structure that reads well
Open with the business problem in one sentence. Describe what you did and why you chose it. Show what changed, with a screenshot of the data rather than a claim. Close with what you would do differently.
That last section is the one that convinces senior reviewers. Candidates who can critique their own work are the ones who improve after hiring.
Small results beat invented ones
A genuine four hundred percent increase on a tiny base is more credible than a vague large claim. State the base. Reviewers respect proportion and distrust round numbers with no denominator.
If a project failed, include it and explain the diagnosis. It reads as senior.
Frequently asked questions
Can I use volunteer work?
Yes, if it was real work with a real stakeholder and a measured outcome.