Which skills are worth learning depends less on trend lists than on five properties you can test yourself: whether anyone in your reach is already paying for the skill, whether it will still matter in five years, whether it travels between employers, whether you can...
To build a skill stack, you pick one anchor skill you already get paid for, add two or three adjacent skills that make the anchor more valuable, and learn them in a deliberate order instead of collecting courses at random. The point is combination, not quantity. Three...