Edition/ɪˈdɪʃn/ Definition 1 of 3Pro Tip 1/3Collectible Value Some editions, especially first ones, can be valuable to collectors. The first edition of that novel is worth thousands. Pro Tip 2/3Content Differences Different editions might have updates or corrections altering the content. Make sure to get the latest edition for the new chapters. Pro Tip 3/3Study Relevance Academic fields often require the most recent edition of textbooks. Your course specifies the fourth edition of the textbook.