A clear, practical exploration of the principles and systems that create successful interfaces. A well-designed user interface feels effortless. It supports users by providing clarity, predictability and next steps, while remaining quietly in the …

The stock-trading app Robinhood has been both a major beneficiary and an important enabler of the surge in day-trading volumes by retail investors on discount brokerage apps since the onset of the pandemic. This …

Clear communication is the foundation of a good user experience. Look closely at most digital products, and you will see that the bigger issues rarely come from missing features. They arise when the product …