This book provides an introduction to the state-of-the art in C-MEMS/C-NEMS with an emphasis on lithographically patterned photo-polymers, carbonized in an inert atmosphere. We can expand our perspective considerably by learning from the traditional carbon manufacturing community where researchers deal with a much wider variety of carbon feed stocks such as coal, coconut shell, wood, agricultural wastes, and industrial wastes to make all types of useful carbons. The new concepts are introduced by discussing carbon nanomaterials synthesis aided with catalysts and chemistry and detailing the microstructure of the resulting nanocarbons.