Free: How Today's Smartest Businesses Profit by Giving Something for Nothing4,1Autor: Chris Anderson5,79€Afegir al carret1 oferta disponible
The Long Tail: How Endless Choice Is Creating Unlimited Demand4,3Autor: Chris Anderson5,79€62,28€Afegir al carret1 oferta disponible
Free !: Comment marche l'économie du gratuit3,9Autor: Chris Anderson24,30€Afegir al carret1 oferta disponible