Former Secretary of State Hillary Clinton continues to tour the nation, promoting her new book, Hard Choices, and a possible 2016 candidacy.

Her book tour, filled with gaffes and missteps, has lagged and perhaps failed to live up to expectations. But that's not all. Her book, when compared to former Alaska Gov. Sarah Palin's political memoir, Going Rogue, has woefully underperformed in sales.

And it’s pretty cut and dried.

Palin's book, which was released the same year President Obama moved into the White House, sold approximately 496,000 copies in its first week of release, according to figures cited by the New York Times.

That’s almost half a million copies in one week.

In contrast, Clinton, with all her softball interviews and a massive amount of free publicity from an excited press, sold only 100,000 copies from its Tuesday release through Saturday, Politico reported.

And because “explanatory journalism” is all the rage these days, here’s a chart to help you visualize Palin’s first week of book sales versus Clinton’s:

Hopefully, that chart helped you to understand the news.