Org has the reputation of being complex. It has tons of features, but the basics are quite easy to master. It's an outliner, i.e. text that can be organized us

Org has the reputation of being complex. It has tons of features, but the basics are quite easy to master. It's an outliner, i.e. text that can be organized using nested headlines and subheadlines. Text markup has all the usual features, plus links, footnotes and tables. Links can be customized to support new protocols, but out of the box they already, among other things, understand file paths, DOIs and, obviously, https. Coupled with footnotes, these provide a really simple and useful citation mechanism for a personal wiki. Tables are literally mini-spreadsheets, as they can compute formulas. A second key aspect of Org are keywords and timestamps. Keywords let you mark things as TODO, DONE or any other user-defined state. Timestamps let you mark headlines as deadlines or scheduled events. Org then has agenda views, built dynamically by scanning files. Agenda views display calendars that show incoming deadlines, appointments or tasks.