In the decades since Lennon's 1980 murder at the hands of a delusional fan, Ono (as author, filmmaker, and musician, as well as visual artist) has enjoyed a renewed admiration within the art world…

Here's what we're reading this morning.

Big shows for Yoko Ono, Cecilia Vicuña, and Caspar David Friedrich promise to expand art history.

An exhibition of participatory art suggests that viewers step up to the work (or at times step on it), but flattens the context that gives such gestures meaning.

Here's what we're reading this morning.

Here's what we're reading this morning.

Here's what we're reading this morning.

For decades, artists like Yves Klein, Yoko Ono, and Ray Johnson have experimented the postal system.

The work offers a message of hope to visitors on the occasion of the museum's reopening.

Various venues, New Orleans, through February 25