The problem is that it is absolutely not a good primer on the subject, and the only way you could know this is if you have experience in electronic trading alre

The problem is that it is absolutely not a good primer on the subject, and the only way you could know this is if you have experience in electronic trading already. If you are trying to learn about electronic / high frequency trading by reading "Flash Boys" you are actively working against yourself. You will literally be more incorrect after you have read this book.