The document provides details on the modeling process for several modular building assets, including a pillar, window, shop sign, fence, stairs, building front, wall, front pillar, and roof barrier. For each asset, the modeling steps are described, including using techniques like box modeling, extrusion, chamfer, inset, boolean operations, and UV unwrapping. Wireframe and textured images are included to show the progress and results of modeling each asset piece. The goal is to create a set of modular pieces that can be combined to construct different building layouts in 3D.