Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
"This book is really short. Short books are hard to write, but you made me do it. My readers are excellent correspondents, and this is something I've learned from them along the way: Write less." --Seth Godin
Damn straight. This book is an exercise in brevity. I often recommend that readers preview a key chapter before deciding whether to commit to a book. No need with this one--just take an extra 20 minutes and read the whole thing. Borrow it instead of buying it; the key points will stick with you.
Godin's points are straightforward:
* Comes a time in doing anything when it gets hard and stops being fun. * If it is something you can be the best at, stick with it through the "dip." * If it isn't something you can excel at, quit. And excel at something else. * Learn to recognize such "cul-de-sacs" and avoid even starting such paths. * Endlessly coping without either excelling or quitting is a trap. * Systems are designed to exploit "copers" in various ways. Beware. * There are eight common causes of "dips." Beware some more.
That's pretty much it. There are some good stories about Vince Lumbardi, Butch Cassidy, the space shuttle, and Microsoft. But they build on the main points. There is good advice here. It would be worth your time, even if it were longer.