The Publish or Perish book is a companion to the Publish or Perish software program, which retrieves and analyzes academic citations. Part 3 of the book discusses how to use Publish or Perish when doing bibliometric research. It provides tips and tricks in doing bibliometric research on authors and journals and presents a detailed evaluation of the two main data sources for citation analysis: Google Scholar and Thomson ISI's Web of Science. The book also proposes an alternative to the traditionally used ISI Journal Impact Factor to evaluate journals and shows how different data sources and citation metrics impact on comparisons of academics between disciplines.