# Filters

Filters narrow the feed and the calendar to the events worth your time. You can combine as many as you like, and each one answers a plain question.

![The filter bar with the Ecology topic selected and the location set to Chisinau, Moldova, narrowing the feed to two events](https://wiki.involvo.io/uploads/images/gallery/2026-09/41-filter-bar.png)

## What you are interested in

**Topics** group events by subject. There are eleven: Communication & Expression, Language Learning, Critical Thinking & Media Literacy, Entrepreneurship & Business, Digital & Technology Skills, Environment & Sustainability, Political System, Leadership & Self-Development, Culture, Arts & Identity, Health & Wellbeing, and Other.

Pick the ones you care about and the rest drops away.

## Where

**Country and city** limit events to a place. This does more than it looks like it does: as well as events happening in that place, it includes events held elsewhere that are open to people applying from there. That second group is worth its own page — see [Finding opportunities abroad](/books/find-opportunities/page/finding-opportunities-abroad).

**Online** shows events you can attend from anywhere. Online events belong to no city, so this one ignores country and city.

## When

**Date range** limits events to a period — a particular month, a free week, the run-up to a holiday.

## Whether you can still get in

**Registration open** hides events that are no longer accepting people. Useful when you want something you can act on today rather than something to admire.

## Searching

If you already know roughly what you are looking for, search by words in the event.

## A filter you set once, not every time

The languages you say you can attend in decide which **online** events you are shown, since an online event can be run in any language and reach you anywhere. If you have not set any, you see them all. This lives in your account rather than in the filter bar — see [Profile, language and location](/books/account-rewards/page/profile-language-and-location).