Which of the following is NOT listed as a design feature to improve usability?

• A. Step-by-step procedures
• B. Crisp typography
• C. Diagrams
• D. Checklists

Answer: (B)

Usability in printed educational materials is boosted by features that guide action and support quick understanding. Step-by-step procedures provide a clear sequence for completing tasks, diagrams translate complex ideas into visuals that are quicker to grasp than text alone, and checklists offer a concise way to verify that every essential step is done. Crisp typography matters for readability, but in this particular set of design features it isn’t framed as a usability aid in the same way, since it’s more about legibility and overall presentation than guiding actions or structuring information. That’s why crisp typography isn’t listed as a usability design feature here, while the other three are.