When Hong Kong public libraries pulled books about dissent from circulation last month, Pong Yat Ming made an offer to his customers: They could read some of the same books, free, at his store.

Pong, 47, founded the shop, Book Punch, in 2020, after Beijing imposed a national security law in response to the anti-government protests that rocked Hong Kong in 2019. The law broadly defined acts of subversion and secession against China, making much political speech potentially illegal, and it threatened severe punishment, including life imprisonment, for offenders.

Pong said he had opened Book Punch precisely because he did not want the city to fall silent under the pressure, and because he felt it was important to build a more empathetic, tight-knit community as the law cast its shadow over Hong Kong.