Good designers thrive on taste.
To develop taste, study the world. Become an explorer of elegance.
Build things. Watch people struggle with your designs. Listen to their feedback.
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Sorry, enough poetry. Here are some links :)
• The Design of Everyday Things: https://www.amazon.com/Design-Everyday-Things-Revised-Expand...
• Visual Display of Quantitative Information: https://www.amazon.com/Visual-Display-Quantitative-Informati...
• 99% Invisible: https://99percentinvisible.org