Talk:The 7 Habits of Highly Effective People

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The reference for numbers of copies sold is wrong

The wikipedia article says 25 Million copies were sold.

The reference to support this is this article which says 20 million copies were sold in 2012:

https://edition.cnn.com/2012/07/16/us/obit-stephen-covey/index.html

We need a better reference for 25M.

Franklin Covey offer one such support, but it's not clear at which date it reached 25M, and what the number is today:

25M copies were sold by 2012:

This article says 25M copies were actually sold by 2012:

https://www.forbes.com/sites/kenkrogue/2012/07/16/stephen-r-covey-7-habits-author-dies-at-79/#7ef03f874f6d

Is it really 30M? Or is it more? How many units have been sold today?

These pages suggests it's 30M:

A ballpark calculation:

If the book had sold 25M copies in 2012, and was published in 1989, then that's average sales of just over 1M per year.

Projecting that out to 2020 would take us to 25M + 8M = 33M, which is consistent with "over 30 million copies sold."

I'll let someone else decide how best to reflect this. The easiest path forward is to go with "over 30M" and cite one of the two references supporting that.

Lauchlanmack (talk) 23:23, 11 March 2020 (UTC)[reply]

versions, a VHS version also exists

Vhs is history. If there no cd it will ne good to mention it. And he sold allready 60 millions

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