Mark Grotjahn's "Three Tiered Perspective" series is a pivotal exploration of spatial concepts and visual perception through a distinctive use of multi-point perspective. This body of work, developed in the late 1990s, showcases Grotjahn's methodical approach to abstraction, where he meticulously manipulates lines and colors to challenge traditional notions of depth and perspective within a two-dimensional plane. The series is known for its vibrant, alluring compositions that engage the viewer in a visual dialogue about the construction of space and the illusion of depth on a flat surface.

In these works, Grotjahn divides the canvas into vertically stacked segments, each containing radiating lines that converge at different vanishing points. This strategic organization of space creates a hypnotic and complex composition, inviting viewers to navigate through the layers of color and form. The series exemplifies Grotjahn's rigorous process, where he first outlines the geometric framework in pencil before filling in the contours with rich, opaque color, working systematically from left to right. This precise technique results in a dynamic, energetic visual field that simultaneously captivates and disorients, embodying Grotjahn's interest in the interplay between order and chaos, structure and spontaneity.

"Untitled (Three-Tiered Perspective)," a notable piece from this series executed in 1999, exemplifies Grotjahn's innovative approach to abstract painting. The work, characterized by its immersive scale and meticulous detail, serves as a testament to Grotjahn's analytical and labor-intensive painting technique, which is both celebrated for its technical prowess and the emotive power of its creation. The piece's polychromatic orthogonals, which recede into differing vanishing points across the three sections, produce a mesmerizing effect, reflecting Grotjahn's fascination with the potential of serial abstraction to expand the visual and conceptual boundaries of painting​ (Sothebys.com)​.

Grotjahn's "Three Tiered Perspective" series not only marks a significant phase in his artistic development but also contributes to the broader discourse on abstraction and the legacy of modernist painting. By reimagining perspective and challenging the viewer's perception of space, Grotjahn underscores the capacity of abstract art to evoke complex visual and intellectual experiences. This series paved the way for his subsequent explorations in the Butterfly and Face series, further solidifying his position as a pivotal figure in contemporary art​ (Phillips)​​ (Sothebys.com)​.