Monday Essentials: Book Sale, Election

Take a look at what's happening in Waltham this week.

-Waltham will host a book event about the sinking of the U.S.S. Indianapolis on Tuesday.

-Tuesday is Election Day! The city will hold a primary election for citywide candidates. 

-The Waltham Public Library will host its annual book sale on Friday.

-A Waltham business will host a seminar on how to prevent cognitive decline on Wednesday,