Invisible Lines: Boundaries and Belts That Define the World PG_Gift_Guide the fit water polo player

the fit water polo player

the heart heeds no rules

Joe Walsh is as rock-ribbed a conservative as they come

The kitchen comes alive as they whip up puddings

Detailing this moment of unprecedented obstructionism by both the president and Republicans

Invisible Lines: Boundaries and Belts That Define the World PG_Gift_Guide the fit water polo playerAn indispensable guide to seeing and understanding our planet through the divisions we make, find, or feel. Our world has innumerable boundaries. They range from the obviousan ocean, or a mountain rangeto subtle differences in language or climate. We cross boundaries all the time, sometimes without realizing it. They can be subjective: our perceptions of a boundary may not be shared by others. And yet they shape the way we engage with the world.