In a related free event, from 10-11 a.m. Sunday, an expert panel from the Cincinnati Form Follows Function (CF3) group will answer audience questions about discovering and maintaining Modernist homes and objects. It occurs in Room 204 of the convention center. Please send queries and photos for the panel in advance to firstname.lastname@example.org in advance. Admission to the show is $7 for both days; a limited number of $25 “Java Preview” tickets, good for exclusive early Saturday admission and breakfast, are available in advance. 11 a.m.- 5 p.m. Through Sunday, Feb. 24. Sharonville Convention Center, 11355 Chester Road, Sharonville. 20thcenturycincinnati.com.