Communicating Effectively Is a Lot Like Washing Your Hair

By the time German inventor Hans Schwarzkopf introduced liquid shampoo to the public in 1927, people had been washing their hair with various mixtures for centuries. The earliest examples involved mixing soapberries, gooseberry, and other herbs and using the extract to lather the hair. Later, Europeans would take to boiling shaved soap in water. Herbs … Continue reading Communicating Effectively Is a Lot Like Washing Your Hair