opus

opus - noun - the classification of a composition in relation to the composer's other composition, usually given in chronological order.

So, for example, the first composition would be given an opus of 1 (Op. 1). However, most of the time, the publishers are the ones assigning opus numbers, so the numbers don't always represent the true chronology of a composition.

Impressionism II

Wolf, this one's for you. It's the Renoir Blonde Bather I've been threatening to post seemingly forever. She's plumper than we like them today, but no less exquisite for that. Aside from that, the painting is another fine example of impressionism. (Natalie, you have nobody to blame but yourself.)

cubism

cubism - n - A style of painting and sculpture developed in the early 20th century, characterized chiefly by an emphasis on formal structure, the reduction of natural forms to their geometrical equivalents, and the organization of the planes of a represented object independently of representational requirements.

(I know I'm not being very systematic in my art presentation.)

Probably the most famous example is Marcel Duchamp's Nude Descending a Staircase, No. 2, displayed at the 1913 New York Armory exhibition. In my opinion, fine art has never recovered from the cubists; they paved the way for the outrageously overrated Picasso, Kandinsky, Pollock, and too many others to list.