Douglas County Commission, 8 a.m. to 10 a.m., Courthouse, 1100 Mass.
Toddler Storytime for children 2 years old accompanied by adult, 9:30 a.m. and 10:30 a.m., 7 p.m., Lawrence Public Library, 707 Vt., 843-3833, ext. 117. Pre-registration requested for 9-week session.
Open piano master class, led by faculty and students from the International Institute for Young Musicians, 4 p.m., Swarthout Recital Hall, Murphy Hall, KU, 864-3436.
Storytime for everyone, 10:30 a.m., Children's Room, Lawrence Public Library, 707 Vt., 843-3833, ext. 117.
Abbott and Costello Film Series: "The Naughty Nineties," (1945), 7 p.m., Auditorium, Lawrence Public Library, 707 Vt., 843-3833.
"Harry Potter and the Half-Blood Prince" release party, 8 p.m., Hawk's Nest and Baumgartner Terrace, Kansas Union, 864-SHOW.
Sunset at The Point, 7 p.m.-9 p.m., South Lawrence Trafficway to Clinton Parkway exit to Clinton Dam, follow signs, www.sunflower.com/~thepoint.