TODAY: The Newport Beach Public Library presents Susan Irby, author of “Substitute Yourself Skinny,” at the What's Cooking at the Library event, which is at 7 p.m. in the Central Library Friends Room, 1000 Avocado Avenue, Newport Beach. Known as the Bikini Chef for her “figure-flattering flavors,” Irby will share her secrets for making food taste delicious without high calories. She'll discuss how to use skinny substitutions in favorite recipes and how to boost your metabolism. The cost is $20. For information, call (949) 717-3800 or visit www.newportbeachlibrary.org. (September 20, 2010)

TILL OCT. 20

Photo-Environment

"Photo-Environment," an exhibit of 100 photos from 17 photographers, will be on display at the Orange Coast College's Frank M. Doyle Arts Pavilion, 2701 Fairview Road, Costa Mesa. For gallery times and more information, visit http://www.occartspavilion.blogspot.com.

THURSDAY

Resource Showcase

The O.C. Substance Abuse Prevention Network is hosting its 21st annual Showcase of Community Resources from 8:30 a.m. to 12:30 p.m. at the Costa Mesa Community Center. The cost is $7 in advance or $15 at the door and features more than 55 agencies serving youth and families in the county. For more information, call (714) 327-1062 or email lkearns@ocde.us.

Karen Casey

Author Karen Casey will sign books and speak from 4 to 7 p.m. at The Latest Thing: 12 Step Bookstore & Gift Shop, 1576 Newport Blvd., Costa Mesa. Casey has written 22 books and her first book, "Beginning," has sold more than 3 million copies. For more information, call (949) 574-8900.

ONGOING

Caregiver Support Groups

The Orange County Chapter of the Alzheimer's Assn. offers caregiver support groups every month. In Costa Mesa, meetings are every third Sunday at 2 p.m. at Silverado Newport-Mesa. For more information, call (949) 631-2212. It also meets every first and third Thursday at 1 p.m. at Harbor Trinity Church in Costa Mesa. For more information, call (714) 593-9630. In Newport Beach, support groups meet at 7 p.m. every first Monday at Our Lady Queen of Angels. For more information, call (949) 640-1750.

Express Lunch

Andrea Ristorante at the Resort at Pelican Hill, 22701 Pelican Hill Road South, Newport Coast, will open for lunch, offering an express menu with a three-course meal in 30 minutes. Lunch is served from 11:30 a.m. to 2:30 p.m. Wednesday through Saturday. For more information, call (949) 467-6800.

Walking Club

Men and women interested in walking with a group can join the Newport Mesa Walking Club at 9 a.m. and 7:30 p.m. Monday through Saturday at Hospital Road and Superior Avenue in Newport Beach. To join, call Loyda at (949) 650-1140.