How long should my first lightning talk be?

A lightning talk is generally about five minutes, although some events specify three or seven minutes. Five minutes or less is recommended for a first talk because the structure can stay simple. It is normal LT etiquette to stop when time is called, even midway through, so not finishing everything is not a problem.

I have nothing to talk about. What should I do?

Three reliable sources are something you recently got stuck on and solved, impressions of a tool you tried, and something you learned from a mistake. The topic does not need to be advanced. Sharing something you did not know a week ago can help someone at the same stage.

Are slides required, and how many do I need?

They are not required, but about 5–10 slides can make a five-minute LT easier to deliver. Aim for one message per slide and avoid packing in text. Some speakers use only a demo or screen sharing.

What should I watch for in an online LT?

Test screen sharing, turn off notifications, and check your microphone and camera in advance. Reactions are harder to see online, so state the conclusion near the beginning and use larger text. Some events keep recordings or archives, so prepare on the assumption that your talk may be public.

Should I publish my presentation materials?

Publishing is recommended. Sharing them on Speaker Deck, another slide service, or your social account lets them reach people who could not attend and leaves a record of your work. Adding contact details or a short note can also make new connections easier.

Your First Lightning Talk: A Complete Guide to Choosing a Five-Minute Topic, Making Slides, and the Day-of Flow

Your First Lightning Talk: A Complete Guide

After attending several study groups, you may start to feel that you would like to speak too. An LT, or lightning talk, is an ideal first step. This guide explains the process concretely, from choosing a topic through the day of your first talk.

Key points

An LT is a short presentation of about five minutes. It is casual, and stopping when time is called makes it well suited to a first speaking experience.
A recent problem you solved, impressions of a tool you tried, or a small failure is enough for a topic. It does not need to be advanced.
Use 5–10 slides with one message each, following title → conclusion → main point → summary.
This is a place for sharing, not a perfect presentation. Stumbling over words or finishing early is fine.

What is an LT?

An LT, or lightning talk, is a short presentation of about five minutes. Its defining qualities are brevity, informality, and the rule that the talk ends when time is called, even if the speaker is midway through. That light format makes it ideal for a first presentation.

Explore upcoming Miyako de IT events →

Why give an LT after attending?

Moving from listening to giving an LT changes what you gain. Organizing your thoughts for the talk deepens your understanding, and afterward people may tell you they enjoyed it, quickly increasing the number of people you know. This is often when your place in the community becomes clearer. See The Real Value That Begins with Three Visits.

How to choose a topic: three reliable options

Something you recently got stuck on and solved — useful to others stuck at the same point
Impressions of a tool or service you tried — first-hand experience has high value
A small failure and what it taught you — often more memorable than a success story

It does not need to be advanced. Something you did not know a week ago is enough.

A five-minute slide structure

1. Title and introduction (30 seconds)

2. What you will discuss and the conclusion (30 seconds)

3. Main point (3 minutes)

4. Summary and one final message (1 minute)

One message per slide and avoiding crowded text make the slides easier to read.

The day of the talk and handling nerves

Arrive early, become familiar with the room, and test the connection. Everyone gets nervous. An LT is a place to share, not a perfect presentation, so nobody minds if you stumble or finish early. If networking events feel intimidating, read Worried About Attending a Meetup Alone?.

Common mistakes and countermeasures

Packing in too much → Five minutes is surprisingly short. Limit the talk to one idea; saying that the rest is in the materials is enough.
Starting late while pursuing perfection → A first LT does not need perfection. Presenting at 80% completion builds experience faster.
Being too specialized to follow → Audiences vary. Add one sentence of context and ask whether someone unfamiliar with the topic can follow.
Running over time → One timed rehearsal prevents this. Keeping to time is LT etiquette, so cut material if necessary.

Giving your first LT in Kyoto

In addition to co-working study sessions and networking events, Miyako de IT holds LT events focused on particular themes. These events are also used as a place for first-time speakers. A natural path is to become familiar with the setting through How to Join a Co-working Study Session, then try an LT.

Your First IT Study Group: A Complete Guide — start by attending
How to Learn Programming in Kyoto
What Is a Co-working Study Session?
Worried About Attending an Engineer Meetup Alone?