Charging a Hardback - My Shame as an English Major and Computer Nerd

I have written about my conversion to ebooks and the Kindle before. That post can be read here.
I had a moment last night that I feel compelled to share. My Kindle was one of the first things I bought after moving to Korea, the first major purchase and, arguably, the wisest expenditure I've made in the last two and a half years. In that time, I have been all ebook, having read approximately 30 books between my Kindle and iPad. One of the major considerations in adapting to this new way of reading was minding the battery. If I had a free day to lounge at a cafe, I would always make sure to charge my device(s) the evening before, especially as my Kindle's charge capacity has dwindled. The battery used to be a rock star. In fact, about two years ago, I read the unabridged Count of Monte Cristo on a single charge.
Recently, however, I borrowed How Shakespeare Changed Everything by Stephen Marche from my friend Zach. The book is a hardback and I haven't read a physical book since I bought my Kindle in late 2010. I had some free time today so last night, as I was planning my day, I thought I should charge the book so it would be full and ready to rock n' roll once I got to Angel-In-Us Coffee. After deducting that neither my iPad nor my Kindle USB cables would work on the book, I slapped my forehead; I was trying to figure out which of my USB cables would charge this hardback book. For shame.