Book excerpt: Eduardo Bonnín. An Apprentice Christian ( USA spelling) Over ten million people have discovered the love of God through the experience lived in Cursillo, a Movement founded by the Spanish layman Eduardo Bonnín. Through these pages, Bonnín accurately and concisely uncovers the meaning of Cursillo and the “Secret” of the methodology of this mature Charism that has changed the lives of so many. The founder explains the origins of this spirituality directed to today’s people and its expansion throughout the world, as well as outlining the pedagogy of the Cursillo.