It's a banner art weekend, with First Friday's late openings, a big show and studio tours

Many art galleries in and around Philadelphia stay open later on the first Friday of the month.

October also brings the 18th U.S. Artists American Fine Art Show & Sale (see below for details) and the Philadelphia Open Studio Tours from noon to 6 p.m. tomorrow and Sunday (west of Broad Street) and noon to 6 p.m. Oct. 9-10 (east of Broad Street).

There are self-guided tours of artist studios and creative work spaces, hands-on workshops, gallery exhibitions, demonstrations, artist talks and receptions. Find out more at 215-546-7775 or www.philaopenstudios.com.

Here's a rundown of other gallery and arts events tonight and through the month.

Art in City Hall. Second and fourth floors, City Hall, Broad and Market streets. 215-686-9912. "Inside/Outside" works by prison inmates and ex-offenders. To Oct. 29. Philadelphia Sketch Club 150th anniversary show of 120 paintings, drawings, photographs and prints, fifth floor north corridor and Council Chambers balcony. Through Oct. 22.

Artisans 3 Gallery. 901 N. Bethlehem Pike, Spring House, 215-643-4504. Craft show and reception, 11 a.m.-5 p.m. Oct. 9.

Artists' House Gallery. 57 N. 2nd St., 215-923-8440. Paintings by Anthony Palumbo, Robert Bohne, Deborah Placko, Elaine Lisle. Prints by Tony Rosati. Etchings by Thelma Grobes. To Oct. 31. Receptions 5-8:30 tonight and 1-4 p.m. Sunday.

Arthur Ross Gallery. 220 S. 34th St., 215-898-2083. "Naked: The University Collection Unveiled." To Oct. 31.

AxD Gallery. 265 S. 10th St., 215-627-6250. "Passing Evidence," Christine Stoughton and Nancy Sophy. Oct. 8-Nov. 8, in conjunction with DesignPhiladelphia '10. Reception 5-8 p.m. Oct. 8.

Bambi Gallery. 1001-13 N. 2nd St., 267-319-1374. Anna Taas, "Consumer Plastics." Electronic media artist Wil Lindsay, a/k/a VBLANK. Brad Litwin's "cutout cards." Ashley Bubbico, photographs. Through October.

Bridgette Mayer Gallery. 709 Walnut St., 215-413-8893. Keith Crowley, "Basin." To Oct. 30. Reception 6-8:30 tonight.

Center for Emerging Visual Artists Gallery. 1521 Locust St., Lower Level, 215-546-7775. Selections from the studio, curated by Adelin Vlas, assistant curator of modern and contemporary art at the Philadelphia Museum of Art. To Oct. 13. Reception 5:30 p.m. Thursday.

Crane Arts. 1400 N. American St., 215-232-3203. "Troupe de Fetishe," experimental, large-scale video installation by Lisa Marie Patzer, Ian Markiewicz and Doris Lin at the Icebox Project Space. To Oct. 31. Reception 6-9 p.m. Oct. 14.

DesignPhiladelphia. More than 450 designers and artists featured at events throughout the city, Thursday through Oct. 17. Info at www.designphiladelphia.org. Kickoff event featuring Sarah Zwerling, 5:30-7:30 p.m. Thursday, west elm, 1330 Chestnut St., 877-879-8950.

Fleisher/Ollman Gallery. 1616 Walnut St., Suite 100, 215-545-7562. "Four Decades," various artists, celebrating John Ollman's 40th anniversary at the gallery. To Nov. 27.

Galleries at the Gershman Y. 401 S. Broad St., 215-545-4400. "One Foot in America: The Jewish Emigrants of the Red Star Line and Eugeen Van Mieghem." To Nov. 21. Reception 2-4 p.m. Oct. 10.

Galleries at Moore College of Art & Design. 20th Street and the Parkway, 215-965-4027. Wendy Ewald, "Secret Games: Collaborative Works with Children 1969-1999," to Oct. 16. Judith Leiber, "Art of the Handbag," to Oct. 17. "Commonwealth Proper + Emily Bowser," to Oct. 16. "Sneak Peek," alumni and student work, to Oct. 9.

Galleries at the University of the Arts. 320 S. Broad St., 215-717-6000. Morton Bartlett, "Model Children," to Oct. 9, Rosenwald-Wolf Gallery. Jon Naar, "The Quintessential Portraits," to Oct. 11, Hamilton Galleries. "The Art of Sterling Hundley," to Nov. 21, Richard C. von Hess Illustration Gallery.

LGTripp Gallery. 47-49 N. 2nd St., 215-923-3110. "Exits and Entrances," paintings by David Foss. To Oct. 16. Artist's reception 6-8:30 tonight.

Locks Gallery. 600 Washington Square South, 215-629-1000. "Eileen Neff: Retrospection," to Sept. 30. "Edna Andrade: Drawings (1958-1993)." To Oct. 9. Warren Rohrer, " . . . To Make a Live Painting." To Nov. 13. Reception 5:30-7:30 tonight.

Muse Gallery. 60 N. 2nd St., 215-627-5310. 33rd anniversary show. To Oct. 31. Reception 5-9 tonight.

Pentimenti Gallery. 145 N. 2nd St., 215-625-9990. "Sentimental Confidence," paintings by Jacob Lunderby. "More of the best is yet to come," mixed media by artists who will show at Pentimenti in 2010-2011. To Oct. 23.

Philadelphia Art Alliance. 251 S. 18th St. 215-545-4302. "The Sitting Room: Four Studies," Jennifer Angus, Ligia Bouton, Carole Loeffler and Saya Woolfalk. To Jan. 3.

Print Center. 1614 Latimer St., 215-735-6090. Andrew Kozlowski, "Dear Tree Hugger . . . "; Makeready 1: Isaac Tin Wei Lin, "One of Us"; "Pulling from History: Letterpress," co-curated by Matt Neff. To Nov. 20.

Rodger La Pelle Galleries. 122 N. 3rd St., 215-592-0232. Nick D'Angelo, "Paintings Achromic VI." To Oct. 31.

Sande Webster Gallery. 2006 Walnut St., 215-636-9003. Moe Brooker, "Shorthand for the Real." Charles Kalick, "Division." To Oct. 30. Reception 6-8 p.m. Oct. 8.

3rd Street Gallery. 58 N. 2nd St., 215-625-0993. John James Pron, "ROMAN Remix: Repurposing sacred spaces." Also, "Fabrications," by Carol Wisker. To Oct 31. Receptions 5-9 tonight, 6-9 p.m. Oct. 8.

18th U.S. Artists American Fine Art Show & Sale. Samuel M.V. Hamilton Building, 128 N. Broad St., 215-972-0550. Nation's largest sale of 18th- to 21st-century art featuring 36 galleries and dealers, presented by the Women's Board of the Pennsylvania Academy of the Fine Arts. 11 a.m.-8 p.m. today-tomorrow, to 5 p.m. Sunday. $15, students and seniors $12.

Vox Populi. 319 N. 11th St., 215-238-1236. Leah Bailis, "Magical Thinking." Kara Crombie, "Mother's Birthday." Kate Stewart, "Gotterdammerung." To Oct. 31. Reception 6-11 tonight.

Submit First Friday listings to Laurie T. Conrad by e-mail (conradL@phillynews.com) or mail (400 N. Broad St., Philadelphia, Pa. 19130). The November deadline is Oct. 29.