From Macro to Micro: A Visual Guide to the Brain – IEEE Spectrum

http://spectrum.ieee.org/biomedical/imaging/from-macro-to-micro-a-visual-guide-to-the-brain

This a short introduction to human brain:

In the human brain, higher-level information processing occurs in the neocortex, neural tissue that forms the outer layer of the cerebral cortex. In its intricate folds, brain cells work together to interpret sensory information and to form thoughts and plans.