It’s a photo that measures all of three by three inches in our September issue but the letters about it started to flood my inbox literally the day Glamour hit newsstands. (As editor-in-chief, I pay attention to this stuff!) “I am gasping with delight…I love the woman on p 194!” said one…then another, and another, andanotherandanotherandanother. So…who is she? And what on earth is so special about her?

Here’s the deal: The picture wasn’t of a celebrity. It wasn’t of a supermodel. It was of a woman sitting in her underwear with a smile on her face and a belly that looks…wait for it…normal.

I’d loved this photo at first sight myself–we’d commissioned it for a story on feeling comfortable in your skin and wanted a model who looked like she was. But even so, the letters blew me away: “the most amazing photograph I’ve ever seen in any women’s magazine,” wrote one reader in Pavo, Georgia. From another in Somerset, Massachusetts: “This beautiful woman has a real stomach and did I even see a few stretch marks? This is how my belly looks after giving birth to my two amazing kids! This photo made me want to shout from the rooftops.”

The emails were filled with such joy–joy at seeing a woman’s body with all the curves and quirks and rolls found in nature. (Raising a question: With all the six-packs out there, do you even know what a normal belly looks like anymore–other than the one you see in the mirror?)

So what’s the story behind the photo? “The woman on p. 194″ is actually 20-year-old model Lizzi Miller, and this is her second appearance in Glamour, shot by fashion photographer Walter Chin. A size 12-14 and avid softball player/belly dancer (“I like exercising when it’s fun”), Lizzi moved to New York City from San Jose three years ago to become a model (a “plus-size” one by modeling industry standards, though hello, at size 12 she’s actually “normal size”…but I digress).

“When I was young I really struggled with my body and how it looked because I didn’t understand why my friends were so effortlessly skinny,” Lizzi told me. “As I got older I realized that everyone’s body is different and not everyone is skinny naturally–me included! I learned to love my body for how it is, every curve of it. I used to be so self-conscious in a bikini because my stomach wasn’t perfectly defined. But everyone has different body shapes! And it’s not all about the physical! If you walk on the beach in your bikini with confidence and you feel sexy, people will see you that way too.”

As for the letters, Lizzi’s loving them. “When I read them I got teary-eyed!” she says. “I’ve been that girl, flipping through magazines trying to find just one person who looked a little bit like me. And when I didn’t find it I would start to think there’s something wrong with the way that I looked. When J. Lo and Beyoncé came out and were making curves sexy, I started to accept myself more. It’s funny, but just seeing them look and feel sexy enabled me to do the same.” Lizzi, now you’re doing the same for all of us–massive congrats on that.”