"Plop" is an extensive, if not truly comprehensive, look at the New York City-based Public Art Fund's recent projects of public contemporary art in media ranging from light to performance. It includes memorable work by distinguished artists such as Louise Bourgeois, Jeff Koons (his famous flower puppy at Rockefeller Center), Mariko Mori (Her UFO spaceship "docked" indoors in the Madison Avenue building adjacent to 5th Avenue's Trump Tower.), Takashi Murakami (An assemblage of aliens depicted on balloon sculptures in Rockefeller Center with its roots in Japanese anime and probably William Gibson's cyberpunk fiction too.), and Nam June Paik (a dazzling laser light show and sculpture at Rockefeller Center). It also includes work by up-and-coming conceptual/performance artist and sculptor Anissa Mack, whose "Pies for a Passerby", a kitschy Americana performance piece, received some curious national and international attention two years ago (An astute blog columnist wrote a well-reasoned essay back then arguing that this work was not art; I believe it is still posted on the internet.). Notably absent is the sculpture installation by the late George Segal, the distinguished sculptor noted for his realistic papier mache sculptures of ordinary people doing ordinary things - and I might add, a fellow alumnus of Stuyvesant High School - exhibited late last year near Central Park's Grand Army Plaza (southeast corner of the park, across the street from the Hotel Pierre). While the Public Art Fund's aims are truly admirable, much of its work on display tends to be too whimsical (e. g. work by Koons, Mack and Mori, to name but a few). As such it lacks the gravitas I've seen in excellent work by such prominent Tucson, Arizona artists as painters Robert Colescott, James G. Davis, Alfred Quiroz and Jim Waid, photographers Harold Jones, Joe Labate and Frances Murray and last, but not least, performance artist, sculptor and poet Ned Schaper (aka Mat Bevel).