This document discusses Gantt charts and PERT charts. It explains that a Gantt chart is a bar chart that displays project tasks and timelines linearly along an x-axis of time, while a PERT chart is a network diagram that shows tasks as boxes connected by arrows to illustrate dependencies without fixed dates. The document provides examples of common project phases broken down into tasks and notes that Gantt charts allow adjusting tasks as a project progresses. It also defines what a milestone is and how using milestones can benefit projects by monitoring deadlines, spotlighting important dates, and identifying bottlenecks. Finally, it lists the four types of dependencies that can link tasks in a Gantt chart.