ИПИ Библиотека

David Graeber

Every economics textbook says the same thing: Money was invented to replace onerous and complicated barter system--to relieve ancient people from having to haul their goods to market. The problem...

Joan Detz

Why do some speakers succeed while many bore their audiences and lose their listeners? Speaking coach Joan Detz has worked with top clients for more than 15 years and has the answers. In this useful...