Categories, unlike tags, can have a hierarchy. You might have a Jazz category, and under that have children categories for Bebop and Big Band. Totally optional.

12 lessons from my 12 years running a business

I’ve recently stepped down from my role running a UX consultancy for 12 years. I started the business with a co-founder where we sold all our assets, including our cars, cleared our debts and started from our bedrooms. We grew our company into a highly credible consultancy working in long...