As it says it is an early history. This book concentrates on the experiences of the Wrights themselves as they bring the first aircraft into the air. Others are mentioned in so far as the influences they may have had on the nature of the Wright Brothers experience and experiments conducted. Some earlier experiments are not credited properly and there are some facts that obviously were intended to mislead others in any attempt to retrace the experiments independently. While the book gives a fair quantity of technical data there is a lack of "feeling" and so the reason behind their quest is rather untouched.