A Slideshow is a presentation of a series of still images on a projection screen or electronic display like mobile, laptop, television..etc. The changes of an image may be automatically or at regular intervals. Slideshows originally consisted of a series of individual photographic slide projected onto a screen with a slide projector.
A slideshow may be a presentation of images purely for their own visual interest or artistic value, sometimes unaccompanied by description or text, or it may be used to clarify or reinforce information, ideas, comments, solutions or suggestions which are presented verbally. A well-organized slide show allows a presenter to fit visual images to an oral presentation.
See some samples below how the slideshow looks like: