I am often asked the best way to collect all of the Pearls Before Swine strips. The easiest way is to buy the treasury books. Each of them has 18 months’ worth of strips. And they include every Pearls strips ever published, from the first strip to now.
They are, in order of publication date:

- Sgt. Piggy’s Lonely Hearts Club Comic (published 2004)

- Lions and Tigers and Crocs, Oh My! (published 2006)

- The Crass Menagerie (published 2008)

- Pearls Sells Out (published 2009)

- Pearls Blows Up (published 2011)

- Pearls Freaks the #$%# Out (published 2012)

- Pearls Falls Fast (published 2014).

- Pearls Gets Sacrificed (published 2015)

- Pearls Hogs the Road (published 2017)

- Pearls Takes a Wrong Turn (published 2018)

Pearls Goes Hollywood (published 2020)
As an added bonus, each of these treasuries contains my commentary below many of the strips, which some people say is funnier than the strips. (A compliment? Not a compliment? I never know.)
As an added added bonus, here is a photo of me drunk at 1:00 am in a Waffle House in Georgia:

And although I’ve provided Amazon links to most of these books, I encourage you to buy through your local bookstore whenever possible (and if they don’t have it, they’ll often order it for you.)