Fashion designer Brandon Maxwell shared a heartwarming note on social media after seeing First Lady Dr. Jill Biden wearing one of his designs on the cover of this week’s issue of PEOPLE.

For President Joe Biden, 78, and his wife’s first White House interview since being sworn into office on Jan. 20, Dr. Biden, 68, chose a fuchsia wool crepe midi dress from the American designer (a similar style has sold out on Net-a-Porter). When Maxwell saw the new first lady gracing the cover of PEOPLE in his design, he felt an overwhelming feeling of nostalgia and “gratitude.

I think everyone has a publication that defined their childhood, and growing up in a small town, pre-internet and social media, PEOPLE was mine,” Maxwell, 36, wrote on Instagram. “Because it was always available at the check out counter, I would slide a copy into my parent’s grocery cart and pour over the pages when I got home, learning about who and what was happening in the world outside my county lines.