Free helmets: Florida Epilepsy Services will hold a free bicycle helmet giveaway from 10 a.m. to 2 p.m. today at 3811 W Sligh Ave. Participants must be present to be fitted and receive helmets while helmets are available. Call (813) 870-3414.
Four Seasons luncheon: Lisa Unger will discuss and sign her latest novel, Heartbroken, at the Friends of the Library Four Seasons Luncheon, noon today at the University Club, 201 N Franklin St. $30. For reservations, call (813) 273-3616.
Meet the author: Lt. Col. Carolyn J. Eberhart will discuss her book The Shifting Sands of Cam Ranh Bay, about being a U.S. Air Force combat nurse, from 2 to 3 p.m. today at Memorial Hospital, 2901 Swann Ave. Free, refreshments served. Call (813) 342-1313.
Celebrate Tampa history: Join a chat with former U.S. Rep. Sam Gibbons and John F. Germany about the history of Tampa during their years of public service at 10:30 a.m. Saturday at John F. Germany Public Library, 900 N Ashley Drive. Free. Call (813) 273-3652.
Photoshop workshop: Learn how to use Adobe Photoshop Elements 9.0 to enhance digital photos, at 2 p.m. Saturday at John F. Germany Public Library, 900 N Ashley Drive. For adults. Limit 12 participants. Call (813) 273-3652.
Parkinson's support: The Parkinson's disease support group is for caregivers, those who suffer from Parkinson's and their loved ones, from 1 to 3 p.m. Wednesday at First Church of the Nazarene, 5902 N Himes Ave. Light refreshments will be served. Call (813) 932-6902.
Financial empowerment seminar: The "Live Your Dreams" empowerment seminar will help consumers concerned about financial planning, reducing debt, saving a home, investing online, increasing savings and starting a small business. 6 p.m. Thursday at the Ragan Park Community Center at 1200 E Lake Ave. Free. Call (813) 274-7032.
Wine and cheese tasting: Sample a variety of cheeses paired with wines to bring out their flavors, from 6:30 to 7:30 p.m. Thursday at Whole Foods Market, 1548 N Dale Mabry Highway. Free. Email email@example.com.
Call to artists: Tampa Regional Artists is collecting submissions for its "Landscape and Seascape Show" in July. Pictures of all types of topography accepted; must be ready to hang. Framed art over 40 inches counts as two entries; 3-D art accepted. Member entries are $7 or three for $20. Nonmember entries are $12 each or three for $35. Drop off July 21 and 22 from noon to 3 p.m. at Old Hyde Park Arts Center, 705 Swann Ave. Call (813) 220-5800.
History Center needs volunteers: The Tampa Bay History Center needs docents to lead tours for groups of children and adults. No previous experience is required. Must be available one weekday morning per week. All training is provided. Call (813) 675-8981.
Children singers needed: The Tampa Bay Children's Chorus needs singers for the 2012-2013 season. Auditions are being held throughout July and the beginning of August. For an appointment, call (813) 977-5558 or visit tbcchorus.org.