If the pricing is anything like we have at the library book sales... They are really "way too cheap". I've kind of gotten into arguments buying "book sale" books at the library... "No that's too much to give us..."
Maybe looked too poor to be able to afford paying that sort of money? It could have been a day I'd spent all day out only to pop in at the library because I had time before the next bus.
for sure, if you don't have the appropriate educational background, but regarding this book specifically, remarkably accessible if you happen to be a trained physicist/mathematician/engineer.
looking for self-employment options for next calander year. Not sure what the quickest/least hassle/lowest external interference way to turn potential popular science writing into income might be. It occurs to me that actually, a fair number of my Goodreads reviews are a former of attempted popular science education.