[vladmihalcea]

The book made more than 100k as it's still selling pretty well. In fact, the sales have increased over time, even if the book is now 5 years old.

I keep on updating it and will release a second edition soon.

The marketing effort is not just for the book. It also helps me sell:

- video courses

- on-site training

- online training and workshops

- find consulting opportunities

- subscription licenses for a software product I created, Hypersistence Optimizer, https://vladmihalcea.com/hypersistence-optimizer/

[scarface74]

That makes sense. From what I’ve seen, most authors don’t write books just to make money from the books themselves but as the center of the “flywheel”.

[vladmihalcea]

I manged to get some training engagements because someone in the company read the book and liked it.

So, it can surely help you sell other services. However, this Twitter thread aimed to point out that a book can also make good money, not just be an exposure mechanism.