
Handboek Return On Advertising Spend (ROAS)
Hoe meet je de effectiviteit van investeringen in crossmedia campagnes? Half the money I spend on advertising is wasted, the trouble is I don’t know which half John Wanamaker, father of modern…
Hoe meet je de effectiviteit van investeringen in crossmedia campagnes? Half the money I spend on advertising is wasted, the trouble is I don’t know which half John Wanamaker, father of modern…