The PechaKucha 20×20 presentation format is a slide show of 20 images, each auto-advancing after 20 seconds. It’s non-stop and you’ve got 400 seconds to tell your story, with visuals guiding the way. PechaKucha was created in Japan in 2003 by renowned architects, Astrid Klein and Mark Dytham. The word “PechaKucha” is Japanese for “chit chat.”

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PechaKucha works in a specific format for both words and images. The format is as follows:

1. 1. The topic: Presenters at a PechaKucha Night must deliver a speech on a predetermined topic. The format may relate to their work or interests, and the presenter must use twenty slides to support their presentation.
2. 2. The images: PechaKucha slides must feature an image that is predominately free of text, though presenters may use captions. However, any infographic must be brief to allow the audience to read it before the next slide advances. Some PechaKucha Nights allow video art.
3. 3. The rules: PechaKucha has specific rules regarding the length of the presentation, garnering comparisons to the strict regulations of haiku. Speakers must complete their entire presentation in exactly six minutes and forty seconds. To meet that time limit, they can only speak for twenty seconds per slide. They also can’t halt the presentation, return to a previously shown image, or skip ahead to a later image.
   
   Source https://www.masterclass.com/articles/pechakucha-explained

Here are some tips on how to create a PechaKucha presentation:

• 1. Choose a good topic. While you can present on any topic, the best PechaKucha presentations focus on compelling topics to the presenter. Consider doing a presentation on one of your passions, talents, or interests. The topic doesn’t have to be serious; it can be about a magazine collection, rare candy, or a fun place to visit.
• 2. Start with an outline. If you’re unsure where to start, you can outline the presentation using a basic essay structure. For example, start with a thesis statement, move into the body of the presentation, which provides evidence to support your main theory, and close with a summary of your main points in the final slides.
• 3. Be concise. You have less than seven minutes to inform and entertain your listeners, so you need to have a tightly crafted presentation. You should be able to explain your topic in a single sentence; if not, simplify the subject. Steer clear of bullet points and facts and figures, and stick to a maximum of three main points for your entire presentation.
• 4. Choose and use images wisely. Allow your images to help you tell your story. Choose images that are compelling and large enough to be visible from the audience’s perspectives. Stock images and PechaKucha templates are widely available from various online sources.
• 5. Practice. You want to convey your enthusiasm for your subject through your presentation. Rehearse both the text and the timing between slides as much as possible so that your delivery sounds natural. Reading from a script may suggest you are unfamiliar with or uninterested in the topic.

Source https://www.masterclass.com/articles/pechakucha-explained