The Seton LaSalle yearbook, The Sentinel, is a full publication produced by student photographers who attend school events throughout the year to capture photographs and memories for the yearbook. Additionally, anyone in the student body can submit photos through an app to be included in the yearbook.

Yearbook students decide on a theme and design the yearbook from cover to cover. Layout designs are either hand-drawn or designed on a computer. After production, the hardcover yearbook is distributed in the fall of the following year to ensure that photos from late spring events such as Prom, National Honor Society Induction, and Graduation are included.