Apple Publishes 'iOS Human Interface Guidelines' as iBook

Apple has published its 'iOS Human Interface Guidelines' as an iBook that can be downloaded from the iBookstore.

Apple tells developers that whether they're redesigning an existing app or creating a new one, they should consider approaching the job in the way that Apple approached the redesign of its built-in apps.


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iOS embodies the following themes:
● Deference. The UI helps users understand and interact with the content, but never competes with it.
● Clarity. Text is legible at every size, icons are precise and lucid, adornments are subtle and appropriate.
● Depth. Visual layers and realistic motion impart vitality and heighten users' delight and understanding.
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