What is a Gantt chart and what information does it show?

A Gantt chart is a horizontal bar chart that visually displays the project schedule, with activities listed vertically and time displayed horizontally. Each activity is shown as a bar spanning from its start to finish date. Gantt charts show activity durations, start and finish dates, overlapping activities, dependencies between activities shown as arrows, milestones shown as diamonds, the critical path often highlighted in a different color, and progress against the baseline. ---