Charges of Geresy

I thought this was a great initial introduction to the strange world of stocks. All I really knew about stocks before I read this book was that they were sold by companies and you could buy or sell them, but in my head they were very abstract objects.
Becket is very practical in the advice he gives and clearly lays out aspects of the stock market and different market instruments.
The one thing this book is perhaps missing is a basic explanation of what exactly happens when a trade is put forward and the mechanics of buying and selling, which I looked up myself afterwards but would have found useful when reading the book.
The gist is that the stock market is not a single godlike entity that surrounds the planet, but a series of different physical exchanges in different countries. The price can be different in each country and is determined by the last trade successfully transacted.