Ken, no lighting address?
A short and excellent book by nostr:npub1dergggklka99wwrs92yz8wdjs952h2ux2ha2ed598ngwu9w7a6fsh9xzpc, available in many languages, for free. Don't miss it!!
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Discussion
I've got one, it's in my profile.
But I didn't translate the book :)
The translator might have one too.