[koonsolo]

You forget that this is £6k for the first 90 days. Let's be conservative and you can get 7k/year out of this book (author says it's more or less evergreen). Comparing it to an investment that gives a 7% return, that means it's comparable to about 100k invested.

[ZephyrBlu]

What? That estimate is the opposite of conservative, it's outrageously optimistic. In all likelihood, £6k is >50% of lifetime earnings.

Just check out Daniel Vassallo, who has a large audience and also wrote an "evergreen" book on AWS. His book made $80k in its first 90 days out of a total $140k earnings.

https://twitter.com/dvassallo/status/1563280049373331456

Selling an info product is also not at all like an investment. It's not even recurring revenue. Consistent product sales tend to rely on a lot of factors including continuous spend on marketing/ads.

If you offered me the revenue from this book or £100k, I'm taking £100k every time.

[bdcravens]

> it's comparable to about 100k invested

When investing you typically can retrieve your original investment at any time.

> £6k for the first 90 days > Let's be conservative and you can get 7k/year out of this book

Keep in mind the author doesn't make that money, but rather, is paid a royalty. The author said they've earned more like $1100, and they expect around 1-2k a year, not 7k: "I am hopeful that in a couple of months this might lead to a passive income of $100-$200 per month for a while."

> author says it's more or less evergreen

No, they acknowledge the book likely has a shelf life: "...with all things in the tech world I imagine someone will write a newer book on the same topic in the not so distant future or perhaps some of the technologies mentioned will update substantially and my book will no longer be up to date"

[bearmode]

You forget that the £6k is total sales, he's made about 1/6 of that. I think 7k/year is extraordinarily optimistic based on the sales he's seen so far