A second edition is different to just getting another print run done on your book. Creating a second edition allows you to make revisions to the text. There are some benefits to this process:
Using professional editors
If you self-published your first edition, you might not have had your book professionally edited. A second edition is a great opportunity to hire a professional editor and polish your successful self-published title.
Selling more copies
Customers and reviewers are interested in the next big thing. Creating a second edition gives you a fresh opportunity to get people talking about your book which can lead to more reviews and sales. The publication date will be this year – and if the first release was several years ago, this can make a book appear more current, and therefore more relevant. This may not apply to all titles, but is certainly a factor when people compare books at the point of making a purchase. It could be the thing that tips the balance in your favour.
If the updates are extensive then people who enjoyed the first edition might consider buying the book again to see what has changed and improved.
Keeping your book up to date
Non-fiction books in certain genres such as technology and science can soon become out of date. For example: a 2016 book about how to use social media to promote businesses would not mention the most recent Facebook update or new platforms like Tik Tok. Some non-fiction titles update every couple of years to make sure the information and advice is current.