Hard-copy literature study guides for Gary Paulsen's Hatchet are available for purchase at online and in-store retailers such as Amazon.com. Online study guides can be found for free at websites such as SparkNotes.
"Great Works Instruction Guides for Literature: Hatchet" is a resource that includes vocabulary and reading analysis. It's primarily suited to the classroom as a study guide for students but can be used as a supplement to the novel for individual study. Another useful study guide is BookCaps Study Guide for Hatchet, which contains chapter by chapter analysis, plot summaries, and a guide to characters and themes. Both can be bought on Amazon.com.
SparkNotes has a complete study guide devoted to Hatchet. This study guide provides plot overviews and synopsises for every chapter. Each chapter is summarized and followed with analysis. Information is included for the themes, motifs, and symbols. SparkNotes indicates key points and explains important quotations. Also on this site there can be found character overviews, study and essay questions, and a practice quiz.
Brian Thornton's online study guide at Nt.net includes vocabulary for each chapter. He also provides study questions and enrichment details for thorough comprehension. The format is simpler than SparkNotes and it is free to use as well.