The technology of taking pictures is brought to life with photo-driven design, clear text, and an integrated timeline, making this an excellent resource on the history of photography for elementary students. So much science went into that selfie! First, people had to figure out how light even worked. Then, a French guy smeared sticky black stuff on a silver plate and the black stuff hardened in sunlight. And we had our first picture. (It was not a selfie.) People tried new chemicals and lenses and film to take better, faster pictures. Then came the digital revolution. Cameras got into cellphones and now there are SO many selfies. Will 3-D bring our photos right into reality? A table of contents, glossary, further resources, and an index are included.