A Lightning talk is a short presentation given at a conference or similar forum. Unlike other presentations, lightning talks last only a few minutes and several will usually be delivered in a single period by different speakers.
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Lightning talks may have originated at the Python conference in 1997[1], where they were simply called short talks. The term "lightning talk" was first coined by Mark Jason Dominus for a similar session at the YAPC 19100 Conference (Yet Another Perl Conference) in June 2000[2][3] and gradually spread to other technical conferences.
Formats vary between venues. Most conferences will assign a speaking slot (30 to 90 minutes) to them and arrange several talks one after the other during the session.
The length of talks are usually between 1 and 10 minutes with a 5 minute limit being common. In order to allow rapid changes between speakers, slides may either be discouraged or a single computer running a Presentation program is used by all speakers.
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