The O'Leary series is a step-by-step way to develop computer application skills. The design emphasizes the step-by-step visual approach with screen captures for every concept. A running case-study provides the student with real-world capabilities for the software application. Each lab in the series builds upon the gained knowledge of the previous lab with a single case study running throughout each application text. Sample document opens each tutorial, making it easier for students to understand the steps to take and their importance, and "concepts boxes" identify the most important concepts in each lab.