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 …

Design is often described as a process, but the truth is that real product work rarely moves in a straight line. It loops. It bends. It pauses due to dependencies, then accelerates when alignment …