Besides portraits, he also painted cityscapes, history paintings, and genre paintings.
Yarber is perhaps best known for a series of paintings of flying and falling figures seen above cityscapes viewed at night.
His pen and ink drawings frequently evoke stark, decaying cityscapes of crumbling tenement buildings patrolled by strange vehicles and airborne creatures.
He works mainly in etching and lithography, depicting realistically rendered cityscapes.
The result was one of the most pleasing and harmonious cityscapes in the history of urban design.
He painted portraits, historical and genre paintings, landscapes, still lifes, and cityscapes.
An example is using the night sky as the canvas, the camera as the brush and cityscapes (amongst other light sources) as the palette.
He is known for cityscapes and landscapes, often in moonlight.
