"Five Things You Need To Know Today" is a Patch column that provides readers with essential, daily information at a glance.

1. Hear about a former resident's book

Former Sharon resident Tamara Polzik will discuss her new book, "The Unforgettable: a Memoir," from 3 to 4 p.m. at the Sharon Public Library.

2. Attend an open house

An open house will be held from noon to 2 p.m. at 29 Cottage St.

3. Root for Sharon High on "High School Quiz Show"

Sharon High School faces Hamilton-Wenham in "High School Quiz Show" at 6:30 p.m. on WGBH-2.

4. Support the Sharon High School varsity boys basketball team

The Sharon High School varsity boys basketball team plays Braintree in the second game of the Davenport Classic, at 7:30 p.m.

5. Attend services

The Unitarian Church of Sharon holds services at 10:15 a.m. and 7 p.m.