Next: Time-of-day specifications, Previous: Presentation and sorting, Up: Presentation and sorting
The category is a broad label assigned to each agenda item. By default, the category is simply derived from the file name, but you can also specify it with a special line in the buffer, like this:
#+CATEGORY: Thesis
If there are several such lines in a file, each specifies the category for the text below it (but the first category also applies to any text before the first CATEGORY line). The display in the agenda buffer looks best if the category is not longer than 10 characters.