Download PowerPoint Gantt charts to use in your next presentation. Gantt charts (sometimes referred to as harmonograms) are a type of horizontal bar chart that is used to visualize a project schedule. Gantt charts are commonly used in project management to keep track of project tasks and contain important information such as what the task is, who it is assigned to, the duration of the task and any overlapping activities. Choose from our frequently updated selection of PowerPoint Gantt charts. All are easy to download and can be edited to suit the needs of your business.