Download Your Free Facts Book: Mind-Blowing Trivia Inside

The free book is split into four areas: general trivia meant to change how you see the world, unusual and quirky knowledge you won't easily find elsewhere, the surprising stories behind familiar brands, and the history of inventions that changed how we live. It's offered as a way to explore some of that knowledge without cost.

It's offered at no cost — you provide your name and email address to receive it, and the signup page states you can unsubscribe from the mailing list at any time. No purchase is required to get the download, and nothing on the page mentions a paid upgrade.

You fill in your first name and email address on the signup form and click through to send yourself a copy. The page doesn't describe a delivery method beyond the email signup, so expect it to arrive at the address you provide.

It appears to, since the form includes an unsubscribe notice stating you can opt out at any time. Beyond that detail, the page doesn't specify how often emails are sent, what else the list is used for, or who runs it.