Poets Anonymous - Mostly Books, 6208 E. Speedway. Open-mic poetry reading: Read your work or someone else's, or listen to poetry, spoken word, fiction and nonfiction. 7-8 p.m. the third Thursdays of each month through Oct. 17. Free. 571-0110.
Tucson Letter Writers Club - Mostly Books, 6208 E. Speedway. Write letters to friends like in the old days. The club supplies everything but the stamps. 7-8 p.m. Thursdays. Free. 571-0110.
"The Incredible Spider-Guy" - The Gaslight Theatre, 7010 E. Broadway. Musical spoof starring your friendly neighborhood web-head. 7 p.m. Tuesdays-Thursdays; 6 and 8:30 p.m. Fridays and Saturdays; 3 and 6 p.m. Sundays. $18.50; discounts available. 886-9428.
Petco Dog Adoptions - Petco, 9640 E. 22nd St. Adoption fees will include spay or neuter, microchip with free monitoring, free vet visit and shots. Adoption fee discounts available. View adoptable dogs at www.petharbor.com, enter ZIP code 85745, check box for Pima Animal Care Center. 10 a.m.-3 p.m. Aug. 17. Free. 405-1084.
Argentine Tango for Beginners - Sonoran Ballroom, 5536 E. Grant Road. 2 p.m. Saturdays. $10. 468-5536.
Classic Car Show - Little Anthony's Diner, 7010 E. Broadway. Trophies are awarded in several categories, and dash pins are given to the first 75 cars registered. DJ, Hula-Hoops, bubble-gum-blowing contests, the bunny hop and a jumping castle. Food available for purchase. Registration begins at 5 p.m. 7-10 p.m. Aug. 17. Free. 296-0456.
Meet the Hohokam - Saguaro National Park East, 3693 S. Old Spanish Trail. Discover what the early desert people used for food, shelter and clothing. Indoor presentation. 10 a.m. and 3 p.m. Saturdays; 11 a.m. Sundays. Free. 733-5153.
Photographs by Members and Friends of UUCT - Unitarian Universalist Church of Tucson, 4831 E. 22nd St. 9 a.m.-1 p.m. Wednesdays through Fridays; 11:45 a.m.-1 p.m. Sundays. Free. 748-1551.
"Visual Delights" Exhibit - Desert Artisans' Gallery, 6536 E. Tanque Verde Road. Featuring local artists Don Carter, Le Craven, Nancy Cressler, Susan Grijalva, Carol Hegedus and Del Marinello. 10 a.m.-5 p.m. Mondays-Saturdays; 10 a.m.-1:30 p.m. Sundays. Free. 722-4412.
Earth, Water, Fire and Wind - Academy Village Long Gallery, 13715 E. Old Spanish Trail. Catherine Friederich presents art jewelry with semiprecious stones and metal. 9 a.m.-4 p.m. Monday-Friday. Free. 647-0900.
Recent Photography Work - Academy Village Long Gallery, 13715 E. Old Spanish Trail. Photographer Blair Friederich presents his most recent work. 9 a.m.-4 p.m. Monday-Friday. Free. 647-0900.
All About Saguaros - Saguaro National Park East, 3693 S. Old Spanish Trail. Join a park naturalist in the visitor center lobby to delve into the life of a saguaro cactus. Wheelchair-accessible. 10 a.m. Mondays and Tuesdays. Free; $10 per vehicle to enter park after the event. 733-5153.
Fiction Book Discussion - Mostly Books, 6208 E. Speedway. "Left Neglected" by Lisa Genova. Examines the hardship a woman faces after a terrible brain injury. 7 p.m. Aug. 21. Free. 571-0110.
Go to dailystarcalendar.com for more calendar listings and to submit an event at least three weeks in advance.