I picked this book up on a whim at a thrift store in Galena, Illinois back in 2001 or 2002 (I was on a day trip with my future wife). I still remember the store and the discovery quite fondly. I didn't buy the book right away. In fact, I picked it up, examined it, then initially decided against it. But I returned about an hour later to buy it. It was about $8, as I recall. Of course, it would be another five years or so before I finally got around to reading it.
But once I started, it was difficult to put down. What a fascinating view on the history of art! It was witty, informative, and incredibly well-written. And there were so many passages that stuck with me, both as an artist and a writer, but none so strongly as this (though I'm paraphrasing), "There's one principle that must underlie all art: have something to say, say it in as few words as possible, then stop talking." I didn't take this to mean that all artwork--whether it be writing, painting, sculpting, or dancing--should be minimalistic, rather if you're able to accomplish your message in the style of a minimalist, then that's what you should do. But, for example, if The Who needs 8 minutes and 30 seconds to perform "Won't Get Fooled Again," then they should absolutely use those 8 minutes and 30 seconds for all they're worth (but not a second more than is absolutely necessary).
Of course, some of the material feels dated, but that's not to take away from the wealth of information and entertainment that van Loon collected within the nearly 650 pages of this book. I was so inspired by this book, in fact, that I named one of the main characters in my own book after the author, Hendrik.