Both Amazon (https://www.amazon.com/99-Invisible-City-Hidden-Everyday/dp/...) and B&N (https://www.barnesandnoble.com/w/the-99-percent-invisible-ci...) offer a sneak peek feature and Audible offers a sample, too: https://www.audible.com/pd/The-99-Invisible-City-Audiobook/0...

I would guess that local libraries either will have one, or could be asked to order a copy (I regrettably don't know the process for that -- as in, whether a title must have a certain number of requests or what)