Three kinds of work, documented the same way: what the business was up against, what we decided and why, the numbers where we are allowed to publish them, and what did not work.
That last part is the reason these pages exist. Any agency can show a graph that goes up. The useful question is what they did when it did not, and whether they will tell you. Where a client has not authorized the numbers we say so instead of substituting one we cannot show — which is why the V&D case study documents scope and migration rather than results, and why the hacked-site rebuild runs anonymously.