This summary is not the rule. The rule text controls.
Before a short trial starts, both sides need to work together to put together a shared booklet of evidence. This booklet can include things like photos, diagrams, facts, and other material either side plans to use during the trial.
The parties don't create separate booklets. They build one joint booklet together, which means both sides have to cooperate and agree on what goes into it. This booklet must be turned in along with the pretrial memorandum, so it needs to be ready before the trial begins, not put together at the last minute.
For anyone going through a short trial, this means you'll need to talk with the other side ahead of time about what evidence you're both presenting. Getting this done early helps the trial run smoothly, since everyone will already know what evidence is on the table before testimony starts.
