The famed “linear park” may be a runaway success, but it’s also a symbol of Manhattan’s rising inequality. Can its founder help other cities learn from its mistakes?

Clients are important. Really really important, and these 15 ways to keep them happy are worth holding on to.

The latest smart stuff from the Ellen MacArthur Foundation & Ideo.

A handy guide by 99u to navigating what's coming up next in the design world.