I found a used copy of the Men of Mathematics by Bell at a library book sale. I also own multiple optics books including the one by Johannes Kepler.

A book on the Human Skeleton.

who buys books when we have youtube?

@MsDemeanour Are you serious ?. I have a kindle but much prefer a real book in my hands. I mostly buy from charity shops and then return them when finished unless I want to keep it as a reference book. Amazon is also good for cheap second hand books.

@Moravian oh how I mourn the day I gave my book collection away; to be replaced by a kindle. Yeah I prefer having a book in my hands, to take to bed. But I wouldn't be snuggling up to a science book. For science I would stick to the internet. For my crime or the classics it has to be a REAL book. Don't you love the smell of second hand book shops?

@MsDemeanour We don't have any second hand book shops around here but I did spend some time in a few in Edinburgh. there was one next door to a shop selling second hand vinyl albums. Between the two a great way to waste a few hours. As for reading in bed. Much better than any sleeping pill. Nothing too stimulating, maybe a serious science book, and when the book slips from your fingers switch of the light and into the land of nod.

@MsDemeanour love the smell of the second hand book store. That’s where all my money would go. Rather be in the second hand book shop than the pub or the bookies. Sadly, when I moved to Australia I couldn’t bring them so I gave them a friend so at least they live on in a good home