Reference collection of psychological principles that apply to interface design.

PriceFree
Best forFreelancer, Product Designer, Student

Why we recommend it

It is the clearest summary of the heuristics designers cite constantly, and it is free with a paid book if you want depth.

Strengths

  • Free and beautifully presented
  • Concise, memorable summaries
  • Good for justifying decisions

Drawbacks

  • Reference material, not a course

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