You may have noticed that Prescription for Adventure: Bush Pilot Doctor, originally published in 1991, has gone through a few revisions. Even though the book keeps getting better, the various editions have caused some confusion for readers. Let me help by breaking down the differences:

2nd edition Prescription for Adventure: Bush Pilot Doctor
This book was the original text used for the Alaska Unit Study Guide.

3rd edition Prescription for Adventure: Bush Pilot Doctor
This edition included the following additions and changes:
- Cover updated
- Four new chapters
- Footnotes added
- Index added
- Suggested books and websites for additional information included

4th edition Alaska Bush Pilot Doctor
This edition included the following additions and changes:
- Title changed
- Cover updated
- Size of book changed to match other books in the series
- Two chapters removed
- Footnotes changed to endnotes
- Index updated
- Suggested books and websites for additional information updated
- Reader's Guide included in the back of the book
- Price lowered!

5th edition Alaska Bush Pilot Doctor
This edition is the same as fourth edition but with various updates.