It’s true that symmetry occurs in nature -just look at our bodies- but that doesn’t mean it’s a good strategy for designing. Symmetrical visual arrangements are generally static and offer little movement. Worse, symmetrical arrangements make integrating asymmetrical image material awkward, and limit a designer’s flexibility in pacing and dealing with content that doesn’t quite want to fit into the symmetrical mold. Last, but certainly not least: symmetry shouts very loudly that the designer is lazy and likes to let the format do the designing. The format has a center axis, and clearly everyone can see that. Why the format tell you what to do? You tell the format who’s boss.
Symmetry is the ultimate evil
Timothy Samara en «Design Elements. A Graphic Style Manual.» 2007