Still painting in oil, Ode Bertrand has devoted himself for more than forty years to the art of line in a radical way. She says she does not appreciate pure colour and material effects, but prefers line, rhythm, and form. Geometrical abstraction and the trend of concrete art came to Ode Bertrand without detour because many artists proposing these concepts have often, at first, worked on figuration, contrary to it.
Thus, developing his own language Ode Bertrand is mainly interested in black and white. She is mainly interested in line. Systematically tracing on her supports a grid of straight lines on a white surface, she then applies black to the graphic function that she believes allows her to structure space.