This book is a mess. First of all, 100 Diagrams That Changed the World is a misleading title. It seems like Scott Christianson meant something more like 100 Important Things and more often than not the "diagram" he included (if it even can properly be called a diagram) was not what changed the world.
For example:
1. Ancient architectural columns
2. Musical notation
3. Acupuncture
4. The Rosetta Stone
5. Dante's Divine Comedy
6. Newton's Optics
7. The machine gun
8. Darwin's theory of evoluton (Christianson includes a sketch from one of Darwin's diaries so he can include this in the book - this one is one of the biggest stretches of the idea of a "diagram" changing t
he world)
9. ARPANET
10. The Apple computer (the diagram just shows the outside - it's basically a picture of a keyboard!)
I'll stop at ten, but I could go on.
Furthermore, a number of entries were not even "things" (never mind diagrams!) that changed the world. Did cave drawings, Neolithic spirals in Ireland, Nazca lines, the Pioneer Plaque (no aliens have read it yet, as far as we know), or the iPod change the world? I don't think so. (My argument against the iPod is as follows: personal music players shifted very quickly to devices that made use of WiFi rather than storage on the device itself. Perhaps I'm wrong. Either way, I think it is obvious that the other entries did not "change the world".)
In addition, multiple instances of poor editing jumped out at me. The Pythagorean Theorem is stated incorrectly. Christianson writes, "The square of the hypotenuse (the longest side) of a right triangle equals the sum of the other two sides." But he should say, "...equals the sum of the squares of the other two sides."
The section on Volta's battery says he used zinc and silver in the text, but the caption says Volta used zinc and copper.
In the entry about IKEA, Ingvar Kamprad (IKEA's founder) is not mentioned by name until he is referred to by last name only. After almost three paragraphs discussing Gillis Lundgren (one of IKEA's first employees), Christianson says, "IKEA expanded its approach into other products as well, making the company hugely successful and launching Kamprad to become one of the world's richest men." I assume an earlier draft included more information about Kamprad, but if I had not gone online to look for the information, I would not have known his first name, that he was the company founder, or why Gillis Lundgren had helped make him rich.
I was not combing through the book looking for mistakes. These three jumped out at me. I'm sure there are more I missed.
It is a mystery to me how this book got published. Its contents do not match the title. Its poorly written and poorly edited. Seriously, who is responsible for this disaster?