For example, you want to create a table containing the titles of a section’s articles arranged in three columns, the number of lines depending on the total number of articles, like this:
| article 1 | article 2 | article 3 |
| article 4 | article 5 | article 6 |
| article 7 | article 8 | article 9 |
This trick involves using the doublons (unique) criterion and recursive loops. You first build a loop which displays the first three articles of the section once doublons criterion eliminates duplicates. You can see that you just re-invoke this loop each time, gradually displaying all the remaining articles. For that, in the conditional code of this loop, you add a recursive call towards the parent loop, it will be invoked as long as it produces results.
The same type of loop, with the title tags replaced by logo tags (#LOGO_ARTICLE), allows a gallery display where each article logo (of which the size will preferably be fixed to give a balanced page layout) gives a thambnail.

SPIP 1.9.2