[4] Maclean was first published under the name Heather Michelle Beach in 1990 when a speech she wrote for the Voice of Democracy broadcast scriptwriting contest, sponsored by the Veterans of Foreign Wars, was entered into the United States Congressional Record by Congressman Richard A.

[5] Maclean's work has appeared in Condé Nast Traveler, Fit Pregnancy, New York Parent magazine and Princeton Alumni Weekly.

[6] Maclean has written and edited 13 non-fiction books including science and business, parenting, inspirational, and food-related titles such as The Weight of the Nation for HBO.

Fast & Fit, all written with reality TV star Teresa Giudice, were bestsellers in the "Advice, How-To, and Miscellaneous" category.

[citation needed] Maclean's first fiction title Toward a Secret Sky, a YA adventure set in Scotland, was released by HarperCollins' Blink imprint in 2017.