The Design of Everyday Things

1. The questions this book addresses

How do you create design that people can understand without a manual?

Core perspective
- User mistakes may be signals of a design problem, not a personal failing
- Good design naturally reveals the actions people can take and the current state of the system
Basic principles
- Discoverability, signifiers, affordances, mapping, feedback
- The relationship between action and outcome should feel intuitive

2. What designers should take away

Design cues that help users discover their next action

Screen structure
- Clickable elements and the current state should be visible at a glance
- Controls and results should match the user's mental model
Feedback
- Immediately communicate loading, selection, success, and failure states
- Create confidence that the user is doing the right thing

3. What to check right away

A checklist to review first when a screen keeps causing confusion

Action cues
- Check whether users can tell what they can do without explanatory text
- See whether important actions are hidden or look like ordinary text
Error design
- Check whether there is a way to prevent mistakes or easily undo them
- Reframe repeated mistakes as a design issue, not a user-training issue

XPLORED View

《The Design of Everyday Things》 is a book that looks for the reason users get confused not in the user, but in the design cues and feedback. It is the kind of book that brings you back to the basics when a UI becomes too complex. The moment you feel that users are not understanding it, checking the cues and feedback one by one against this book's criteria can reveal the problem faster than you might expect.

Good timing to read this
- When users often get lost on the screen
- When the product has the function, but the action cues feel weak
- When you want to review errors, feedback, and state indicators again

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