In 2017, Mustich became the founding executive producer of the Barnes & Noble Podcast, for which he has conducted interviews with writers such as Questlove,[7] Nassim Nicholas Taleb,[8] Lidia Bastianich,[9] Steven Pinker,[10] and Michael Wolf.

[11] In 2007, Mustich was founding editor of the Barnes & Noble Review, an online literary journal.

[12] As editor of the Review he has conducted in-depth interviews with many leading authors, including Philip Roth,[13] Salman Rushdie,[14] Philip Pullman,[15] Chimamanda Ngozi Adichie,[16] Neal Stephenson,[17] Richard Price,[18] Elmore Leonard,[19] Azar Nafisi,[20] and Robert Caro.

[22] During its two-decade run, the catalog was published up to 17 times each year and listed hundreds of titles in each issue, each with its own write-up.

[24] Its in-house imprint, Akadine Press, republished over 60 out-of-print books by such authors as Lillian Beckwith, Alice Thomas Ellis, Barbara Holland, Reynolds Price, and John Ciardi.