Marzena Sowa came to France in 2001 to finish her studies that she had begun in Krakow.
In Bordeaux, she met the artist Sylvain Savoia, and from 2004 onwards, they worked together on the Marzi series (Dupuis 2005, Europe Comics 2017), which depicts Marzena's childhood memories of Poland during the final years of the communist regime. The seventh volume of the series was released in July 2017. The series achieved international success and was nominated at the Angoulême International Comics Festival and also for an Eisner Award in the U.S.
In 2013, with Sandrine Revel, Sowa published N’embrassez pas qui vous voulez (Dupuis; You Can't Just Kiss Anyone You Want, Europe Comics 2017) which presents another view of the Soviet era.
In 2014, with the artist Gawron, she published L'Insurrection - Avant l'orage, which takes place in Poland at the tail end of World War II.