This companion book for the series (1 and 2, with hints of series 3) is thoroughly cool, laid out in a retro style throughout. Contains behind-the-scenes, character information - though series one is more complete than series 2. Highly recommended for fans of the series.

My favorite part is the AD&D-style character sheets for the 4 main characters. Character presentation for the other characters are also cool - either yearbook or Hawkins lab reports. A section for songs used on the show looks like a Columbia House record/tape club ad. Scattered in here are six phrases of Morse code - could these be episode titles for series 3?

My only (minor) quibble are the footnotes, which contain too much information (for me) and aren't well written. After the first chapter, I ended up skipping almost all of them.

This book is one of the best companion books I've seen, for any show or movie. If you are at all a fan, you will need to check this out.