Bumi Parahyangan promotional poster and brochure by Rittsu, at Behance. Triangles don't seem to be popular shapes to use in graphic design, but Rittsu executes them well here. Notice the subtle arrows pointing right to persuade the viewer to read on.
máscaras geométricas & coleção formatos Geometric Masks and Shapes Collection : Though, it doesn't look like much of a design, I favor the logos' design styles. Just using lines and a background can change how it looks makes it interesting.