Cases are the best way to present your work.

The fundamental flaw that disqualifies most design portfolios we receive is the fact they don’t present the problem that was solved and the decisions taken to reach the solution. Because, really, only two things are being evaluated: quality of execution and clarity in decision-making. While execution usually receives more love from portfolios, the decision-making process is inexistent in most of them.

Source: Lets talk about design portfolios – Medium