Researchers found a hidden mathematical rule in tree-like art. Branch thickness follows a predictable ratio, making trees recognizable.

Throckmorton Ave., Mill Valley; 415-351-1400; anthonymeier.com. Through Feb. 14: Solo exhibit by San Francisco artist Dave Muller, known for his music-themed paintings. 10 a.m.

"The Whole World Is a Mystery" at the Carnegie Museum of Art marks the first retrospective look at Gertrude Abercrombie in ...

Join The Frank C. Ortis Art Gallery on opening reception night for an evening of art, conversation, and exploration. Presenting two new art exhibitions titled, “Adventum Floridana: Witnessing the ...