"Portraits (B&W) 4" is a lithograph by Christopher Wool, created on the fine art paper Rives BFK White, known for its exceptional surface quality and archival properties. The work exemplifies Wool's interest in abstraction and gestural mark making, rendered in black and white to emphasize the formal qualities of line, form, and composition. As part of a series exploring portraiture, the print demonstrates the artist's characteristic use of lithographic technique to create dynamic, expressive imagery that challenges traditional representational approaches.