As a member of the same Triratna Buddhist Order and Community as Vishvapani, I think this book is very welcome and long overdue. There just aren't many biographies of the historical Buddha around and those there are tend to uncritically rehash legendary material without any attempt to sort fact from fiction.
Vishvapani acknowledges the difficulty in writing about someone who wrote nothing himself and who is mostly known through a huge series of Discourses that were edited after his death to enable memorisation and come across to the modern reader as very formulaic. His approach, he says, is to sift through the Discourses looking for evidence of the strong personality that founded the Buddhist tradition. Vishvapani's book draws on the higher criticism of early Buddhist texts to sift out which stories are reliable and which are not. He adds knowledge from history and archaeology to give a very vivid sense of life in the ancient Ganges Valley civilisation where the Buddha lived and taught. At the same time Vishvapani is careful to make us aware of the world view of Axial Age India with its strong belief in the supernatural and to make us aware of the legends that arose around Gautama and the reasons why. He presents us with a view of Gautama as a real historical figure but someone who was anything but ordinary and who could have an overwhelming impact on the people who encountered him.
There are a few surprises for anyone who has read other versions of the Buddha's life. For instance the famous Four Sights are revealed as a late addition to the story of Gautama that was lifted from an altogether different story. Equally dubious is the personal name 'Siddhartha' which he is often given. Even the conventional dating of the Buddha's life is challenged here. Much of what we are offered are plausible deductions rather than certainties. We know of many incidents in the life of Gautama but not the order in which they occurred.
In spite of an impressive level of scholarship, Vishvapani writes in a clear readable style. The chapters deal with the historcal context Gautama was born into, the events after he left home to seek Enlightenment, the achievement of Enlightenment, his teachings, the community of homeless disciples, debates with Jains and other rivals, relations with lay people of all classes, the crisis both in Gautama's society and his community of disciples in the later years of Gautama's life and his death and legacy. There is a short appendix on the history of Buddhism.
I would have liked more maps in this book or more detail in the only one that we get but otherwise it is superb value for money even at the hardback price.