What AI says about Belletrist

Belletrist is an online reading community for book lovers. They select a new monthly book for members to read along and offer a Belletrist x Tertulia subscription that delivers the monthly pick to subscribers. Founded in 2017 by Emma and Karah, the platform also features collaborations, a shop, and additional content around reading.”} | Note: The above is formatted as JSON which might not be expected; however, per instruction, output the plain three-sentence summary only. Please disregard the extra JSON.