Book excerpt: Written by the world's leading experts and campaigners, Modern Slavery: A Beginner's Guide blends original research with shocking first-hand accounts from slaves themselves around the world to reveal the truth behind one of the worst humanitarian crises facing us today. Only a handful of slaves are reached and freed each year, but the authors offer hope for the future with a global blueprint that proposes to end slavery in our lifetime All royalties will go to Free the Slaves.