[15][16] After Martin moved to the Upper East Side neighborhood of Manhattan with her family in 2004, she began researching and documenting her experiences there for her next book, Primates of Park Avenue.

[18][19] The memoir recounted Martin's experience living among the wealthy women, particularly stay-at-home mothers, of the Upper East Side and examined their behavior from a social researcher's perspective, inspired by the work of Jane Goodall.

[28] On May 16, 2015, The New York Times published an essay by Martin in the Sunday Review section, titled "Poor Little Rich Women", prior to the publication of her book Primates of Park Avenue.

In response, Simon & Schuster promised to add a note by Martin to subsequent editions of the book, clarifying that some chronologies and details were changed.

[32] Martin is married to Joel Moser, a lawyer, financier, chief executive officer, and adjunct professor at Columbia University, with whom she has two sons, one born in 2001 and the other in 2007.