The book went through various situations in which people had to say "no" to the current system, or way of living, for the good of themselves, the people around them, and the world as a whole. These stories are able to bring you right back to a specific story and make you care about the people who shaped your "today" because they said no. No to things that were wrong, and no to themselves, when that meant doing nothing.
This book made me aware of people and situations I had not heard of and brought to life others of which I had only a little knowledge. It presented facts in simple meaningful ways, but it also caught my interest as it took true stories and added specific fictional situations. The stories enabled me to put myself in that same situation and ask the questions "would I have done that? Would I have been brave enough to stand up for what I believe in?"