Case History

A Case History (or Case Study) is a narrative document, video, or presentation that details a successful project completed for a client. It analyses the journey taken from the initial problem, through the strategy and actions implemented, to the concrete results achieved. It is the "proven evidence" of an agency's or professional's competence.

What it is for / why it is important

It serves to generate trust and credibility (Social Proof). In B2B marketing and creative services, potential clients do not just buy a product, but a promise of a result. The Case History transforms that promise into empirical evidence, demonstrating that the agency has already faced and solved similar problems in the past. It is one of the most powerful conversion tools for turning a prospect into a client.

When it is used / in what context it is useful

It is ubiquitous in the online portfolios of web agencies, graphic design studios, and marketing consultants. It is actively used during sales presentations (credentials), in tenders (pitches) to reassure clients, and as downloadable content (lead magnets) to gather interested leads. It is often structured in three acts: The Challenge, The Solution, and The Results.

Practical example

An SEO agency wants to acquire new clients. Instead of simply saying "We are good at ranking sites on Google", it creates a Case History titled: "How we took the T-ShirtXYZ e-commerce store from 0 to 10,000 monthly visits in 6 months". The text describes the disastrous technical situation at the start, explains the technical interventions made on the code and content, and closes with a graph showing the spike in organic traffic and sales.