# Topic Pages

Topic pages are used to organize communities and shared resources around specific topics, such as those listed on the Topics index, at https://publiclab.org/tags.

### Card text and image

On the top of topic pages, a card is shown with the topic name, and a short text (as in the above screenshot), and a background image may be shown. This is drawn from the very first paragraph of the wiki page bearing the same name; so for the topic balloon-mapping, the text is drawn from https://publiclab.org/wiki/balloon-mapping. The image is also taken from the lead image of the wiki page of that name.

If no matching wiki page exists, you'll see a prompt to create one.

### Aliases and redirects

If you want the lead text and image to be drawn from a different wiki page, you can make the matching wiki page a "redirect page" by adding the tag redirect:______, where ______ is replaced with the text from the URL of the page you really want.

For example, if you're on the topic page for algal-blooms but want the text and image to be drawn from algae, you can make a page at https://publiclab.org/wiki/algal-blooms, but then add the tag redirect:algae to that page. Then, anyone visiting https://publiclab.org/wiki/algal-blooms will be redirected to https://publiclab.org/wiki/algae, and the text and lead image of /algae will be used on the card for the topic algal-blooms. That is, the topic page can follow redirects to find the text and lead image to display.

### Questions

Title Author Updated Likes
Nothing yet on the topic "topic-pages" -- be the first to post something!

Public Lab is open for anyone and will always be free. By signing up you'll join a diverse group of community researchers and tap into a lot of grassroots expertise.