Today

Fall Showcase of Homes, by the Lawrence Home Builders Association, free, noon-5 p.m., www.lhba.net or call 748-0612.

Fall Book Sale, half-price day, 2 p.m.-6 p.m., Lawrence Public Library, 707 Vt.

Pinckney Historic Walking Tour by the Lawrence Preservation Alliance, 3 p.m.-4:30 p.m., starting at Constant Park, Sixth and Indiana streets.

Family storytime, with craft activity, 3:30 p.m.-3:50 p.m., Lawrence Public Library’s children’s room, 707 Vt., 843-3833 ext. 117.

Monday

Immunization clinic by the Lawrence-Douglas County Health Department, 8:30 a.m.-11:30 a.m. and 1 p.m.-8 p.m., 200 Maine, 843-0721.

Fall Book Sale, $7 bag day, 5 p.m.-8 p.m., Lawrence Public Library, 707 Vt., Monday, October 2, 7 p.m., Library Auditorium.

Mystery Authors Panel Part I, with Nancy Pickard, Carolyn Hart and JoAnna Carl (Eve Sandstrom), 7 p.m., Lawrence Public Library auditorium, 707 Vt.

Lecompton City Council meeting, 7 p.m., Lecompton City Hall, 327 Elmore St.

“The Polluter Pays: Shaping Social Policy According to the Polluter Pays Principle,” Isidor Wallimann of the Basel University of Applied Science in Switzerland, 7:30 p.m., Ecumenical Christian Ministries, 1204 Oread Ave.

Tuesday

Screenings for people 60 and older by the Lawrence-Douglas County Health Department, 9:30 a.m.-10:30 a.m., Lecompton United Methodist Church, 402 Elmore St.

Immunization clinic by Lawrence-Douglas County Health Department, 9:30 a.m.-11:30 a.m. and 1 p.m.-4:30 p.m., 200 Maine, 843-0721.

Toddler storytime for 2-year-olds and an accompanying adult, preregistration requested, 9:30 a.m. or 10:30 a.m., Lawrence Public Library, 707 Vt., 843-3833, ext. 117.

Storytime for all ages, 10:30 a.m.-11 a.m., Lawrence Public Library’s Children’s Room, 707 Vt., no registration required.

Brownbag presentation: “Deciphering the Khodorkovsky Case,” by Ray Finch, Bailey Hall Room 318.

Lawrence Farmers Market, 4 p.m.-6 p.m., 1020 Vt.

Big Brothers Big Sisters of Douglas County informational meeting, 5:15 p.m., 1525 W. Sixth St., Suite A, 843-7359.

Lawrence City Commission meeting, 6:35 p.m., City Hall, Sixth and Massachusetts streets.

Civil Air Patrol informational meeting, 7 p.m.-9:30 p.m., Kansas National Guard Armory, 200 Iowa, 841-0752.

Wednesday

Immunization clinic by the Lawrence-Douglas County Health Department, 8:30 a.m.-11:30 a.m. and 1 p.m.-4:30 p.m., 200 Maine, 843-0721.

Health screenings for people 60 and older by Lawrence-Douglas County Health Department, 9 a.m.-11 a.m., Babcock Place, 1700 Mass.

Books & Babies Storytime, for 8- to 23-month-olds with parent, 9:30 a.m., 10 a.m. or 10:30 a.m., Lawrence Public Library auditorium, 707 Vt., no registration required.

Big Brothers Big Sisters of Douglas County informational meeting, noon, 1525 W. Sixth St., Suite A, 843-7359.

Interagency Network for Aging Legislative Forum, state legislators invited, 2 p.m., registration 1:30 p.m., Lawrence Public Library auditorium, 707 Vt., advance registration recommended, 843-3060 or 841-5300.

Library Safari Club, for 7- to 12-year-olds, 3:30 p.m.-4:30 p.m., Lawrence Public Library’s auditorium, 707 Vt., registration requested, 843-3833 ext. 117.

Douglas County Commission meeting, 6:35 p.m., county courthouse, 1100 Mass.

“Serving up OS X,” by the Lawrence Apple Users’ Group 2.0, 7 p.m., Signs of Life community room, 722 Mass.

“Civics for Everyone,” with Lawrence representatives Paul Davis and Tom Sloan, 7:30 p.m., Lawrence Public Library’s auditorium, 707 Vt. Part of an ongoing series with the League of Women Voters of Lawrence-Douglas County.