RT @VentureBeat: Top Hat raises $22.5 million for digital platform that replaces pricey college textbooks https://t.co/C5bYOLMWy1 by @psawe…

Posted on February 16th, 2017

RT @VentureBeat: Top Hat raises $22.5 million for digital platform that replaces pricey college textbooks https://t.co/C5bYOLMWy1 by @psawe…