Forget 100 hours, how about 20? Josh Kaufman already beat 
them to this topic, and has not only a TEDx talk where he finishes 20 hours on ukelele, but he&#x27;s also written a book:<p><a href="http:&#x2F;&#x2F;tedxtalks.ted.com&#x2F;video&#x2F;The-First-20-Hours-How-to-Learn" rel="nofollow">http:&#x2F;&#x2F;tedxtalks.ted.com&#x2F;video&#x2F;The-First-20-Hours-How-to-Lea...</a><p><a href="https:&#x2F;&#x2F;www.goodreads.com&#x2F;book&#x2F;show&#x2F;16158493-the-first-20-hours" rel="nofollow">https:&#x2F;&#x2F;www.goodreads.com&#x2F;book&#x2F;show&#x2F;16158493-the-first-20-ho...</a>