Sunday 23

ALCOHOLICS ANONYMOUS, 2-3 p.m., Conference Room 2/3, Potomac Hospital, 2300 Opitz Blvd., Woodbridge. 703-445-0777.

Monday 24

CABIN BRANCH QUILTERS, 7:30 p.m., Lake Ridge Baptist Church, 12450 Clipper Dr., Woodbridge. 703-491-1880.

BEDTIME STORY TIME, for ages 2-6, sponsored by the Prince William Library System. 7:15 p.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. 703-792-4800.

LIBRARY STORY TIME, sponsored by the Prince William Public Library System. For ages 2-3, 10:30 and 11:30 a.m., Bull Run Regional Library, 8051 Ashton Ave., Manassas, 703-792-4500. For preschool groups of five or more, 10:30 a.m., Potomac Community Library, 2201 Opitz Blvd., Woodbridge, 703-494-8126. For ages 3-6, 10:30 a.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge, 703-792-4800. Free; registration required.

BLOOD DRIVE, sponsored by the American Red Cross, Prince William Chapter. 3:30-8 p.m., Bethel Lutheran Church, 8712 Plantation Lane, Manassas. 703-368-4511.

Tuesday 25

ESTATE PLANNING, sponsored by the Prince William Library System. 7 p.m., Central Community Library, 8601 Ashton Ave., Manassas. Free; registration requested. 703-361-8211.

ALZHEIMERS SUPPORT, sponsored by the Prince William Senior Center. 7 p.m.,13850 Church Hill Dr., Woodbridge. 703-497-0741.

HOME-BUYING SEMINAR, 7-8:30 p.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. Free; registration required.703-792-6287.

BLOOD DRIVE, sponsored by the American Red Cross, Prince William Chapter. 10 a.m.-3:30 p.m., Prince William County Schools Headquarters, 14800 Joplin Rd., Manassas. 703-368-4511.

BOOK DISCUSSION GROUP, "Fast Food Nation," by Eric Schlosser, sponsored by the Prince William Library System. 7 p.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. Free; registration required. 703-792-4800.

CARDIAC SUPPORT, for patients and family members. Sponsored by Potomac Hospital, 7 p.m., Potomac Center (next to the hospital), Suite 320, 2296 Opitz Blvd., Woodbridge. 703-221-2500.

GENEALOGY RESOURCES WORKSHOP, an informal forum to share information about genealogy software, electronic resources and Internet sites. Sponsored by the Prince William Public Library System. 7:30-8:30 p.m., Bull Run Regional Library, 8051 Ashton Ave., Manassas. Free; registration required. 703-792-4500.

BULL RUN TROUBADOURS, 7:30 p.m., Trinity Episcopal Church, Battle and Church streets, Manassas. 703-753-2249.

PAGER ASSOCIATION, support group for parents of children with gastroesophageal reflux. 7 p.m., Conference Room 1, Wellness Center, Prince William Hospital, 8700 Sudley Rd., Manassas. 703-257-7691.

Wednesday 26

ESTATE PLANING, sponsored by the Prince William Library System. 7 p.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. Free; registration required. 703-792-4800.

LIBRARY STORY TIME, for ages 2-3, sponsored by the Prince William Library System. 10:30 and 11:15 a.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. 703-792-4800.

TOASTMASTERS INTERNATIONAL, Lake Ridge Club No. 8913. 7:30 p.m., Tall Oaks Community Center, 12399 Hedges Run Dr., Lake Ridge. 703-494-5530.

LIBRARY STORY TIME, sponsored by the Prince William Public Library System. For ages 2-3, 10:30 a.m., Potomac Community Library, 2201 Opitz Blvd., Woodbridge, 703-494-8126. For ages 2-5, 10:30 a.m., Central Community Library, 801 Mathis Ave., Manassas, 703-361-8211. For ages 3-6, 4 p.m., Bull Run Regional Library, 8051 Ashton Ave., Manassas, 703-792-4500. For ages 3-8, 4 p.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge, 703-792-4800. Free; registration required.

CLASSES FOR PARENTS, "When Families Get Angry," a three-session, six-hour course to help parents deal with anger in the home. Sponsored by the Prince William Cooperative Extension Service. 7-9 p.m. Wednesdays through April 9, Sudley North Government Building, Conference Room B, 8033 Ashton Ave., Manassas. $35; registration required. 703-792-6288.

PARK AUTHORITY BOARD MEETING, 7 p.m., Prince William County Park Authority Headquarters, 14420 Bristow Rd., Manassas. 703-792-4296.

WRITERS GROUP, 7:30 p.m., Borders Books & Music, 2904 Prince William Pkwy., Woodbridge. 703-897-8100.

PRINCE WILLIAM CHESS CLUB, 7-9 p.m., Potomac Community Library, 2201 Opitz Blvd., Woodbridge. 703-670-5887.

BLOOD DRIVE, sponsored by the American Red Cross, Prince William Chapter. 10 a.m.-3:30 p.m., Potomac Hospital, 2300 Opitz Blvd., Woodbridge. 703-368-4511.

Thursday 27

NATURE WORKSHOP, a nocturnal walk to Clifton Farm to search for frogs and salamanders; sponsored by Friends of Bull Run. 7-9 p.m., Bull Run Mountain House, 17405 Beverly Mill Dr., Broad Run. Members, $5; non-members, $10. Reservations required. 703-753-2631.

CANCER SUPPORT, for patients and family members, sponsored by Potomac Hospital. 7 p.m., Potomac Center (next to the hospital), Suite 320, 2296 Opitz Blvd., Woodbridge. 703-221-2500.

PARENTING CLASSES, for those with young children, sponsored by the Prince William Cooperative Extension Service. 7-9 p.m. Mondays, through May 8, Ferlazzo Building, 15941 Donald Curtis Dr., Woodbridge. $35; registration required. 703-792-6288.

LIBRARY STORY TIME, sponsored by the Prince William Public Library System. For ages 4-6, 10:30 a.m., Bull Run Regional Library, 8051 Ashton Ave., Manassas, 703-792-4500. For children of all ages, 10:30 a.m., Potomac Community Library, 2201 Opitz Blvd., Woodbridge, 703-494-8126. For ages 6-12, 3 p.m., Potomac Community Library, 2201 Opitz Blvd., Woodbridge, 703-494-8126. Free; registration required.

BOOK CLUB, for students in grades 4 and higher, sponsored by the Prince William Library System. 4 p.m., Bull Run Regional Library, 8051 Ashton Ave., Manassas. Free; registration required. 703-792-4500.

FAMILY CRAFT NIGHT, sponsored by the Prince William Library System. 7 p.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. Free; registration required. 703-792-4800.

Friday 28

BACK DOOR FRIENDS, noon, River Woods Community Center, 16573 Nanticoke Rd., Woodbridge. 703-221-5513.

Saturday 29

NATURE WORKSHOP, learn about bats and build a bat house; sponsored by the Friends of Bull Run. 10 a.m.-noon, Bull Run Mountain House, 17405 Beverly Mill Dr., Broad Run. Members $15, non-members $20; reservations required. 703-753-2631.

RECOVERY INC., for people experiencing anxiety, depression, fear and other emotional problems. 10 a.m.-noon, Cokesbury United Methodist Church, 14804 Blackburn Rd., Woodbridge. 703-490-5423.

INCOME TAX ASSISTANCE, through April 12, provided by Volunteer Income Tax Assistance (VITA), sponsored by the Prince William Library System. 10 a.m.-2 p.m. Saturdays, Bull Run Regional Library, 8051 Ashton Ave., Manassas; 10 a.m.-1 p.m. Saturdays, Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge; 10 a.m.-2 p.m. Saturdays and 6-8 p.m. Tuesdays, Potomac Community Library, 2201 Opitz Blvd., Woodbridge. 703-792-4500, 703-792-4800 and 703-494-8126.

CHILDREN'S EXPO, day-long activities for the whole family, including information on summer day camps, sponsored by the Prince William Park Authority. 10 a.m.-3 p.m., Woodbridge Senior High School, 3001 Old Bridge Rd., Woodbridge. Free. 703-792-7060.

CRAFTS SHOW, sponsored by the Gar-Field PTSO. 9:30 a.m.-3 p.m., Gar-Field Senior High School, 14000 Smoketown Rd., Woodbridge. Free. 703-582-3632.

BLOOD DRIVES, sponsored by the American Red Cross, Prince William Chapter. 7:30 a.m.-noon, Grace United Methodist Church, 10201 Hendley Rd., Manassas; 8 a.m.-noon, Tabernacle Baptist Church, 8275 Barrett Dr., Manassas. 8 a.m.-1:30 p.m., American Legion Post 364, 3640 Friendly Post Lane, Woodbridge. 703-368-4511.

Items are accepted on a space-available basis from public and nonprofit organizations only, and must be received at least 14 days before the Sunday publication date. Submit information to: This Week, The Washington Post, 9420 Battle St., Manassas, Va. 20110. Include event name, dates and times, exact address, cost and a publishable contact phone number. For more information, call 703-392-1303.