Hillary wasted decades and billion$ of prep work only to coast to defeat, her stupid and lazy decision-making went against campaigning 101 which is just crazy stuff (gifting Republicans unprecedented amount of control). Not only did Hillary fly home every goddamn night like she was a Trump, but like already mentioned she skipped WI, had months of no press conferences, let Trump outhustle her on the trail, Mexico, and all forms of media, had half the battleground offices that '12 Obama did, invested in internet ads over traditional, ignored warning signs and advice from Bill, MI primary, Brexit, etc.
And oh yea, she earned all-time deplorable ratings and had an ongoing FBI investigation - it says a lot about the party that they risked the country on her...but I suppose few could predict just how terrible Hillary & Co. would campaign. These articles and books about her campaign will be lessons of what not to do.