There are numerous programs available for designing posters, including Illustrator, Inkscape, and PosterGenius. Posters can also be created using several Microsoft programs, including Word, Publisher, and, quite often, PowerPoint.
PowerPoint is well known as a presentation tool. However, it can also be used to create academic posters- not to mention, it is a format many are familiar with
For more information on how to use Microsoft PowerPoint please see our resources on LibGuides
Image by Eric Bjerke CC-BY-NC-ND available from Flickr