When you tell people that there is no good evidence for an historical Jesus they will scoff and think you are some sort of conspiracy-theory nut bar. David Fitzgerald's book: 'Nailed: Ten Christian Myths That Show Jesus Never Existed At All' is a fantastic summary of why one should indeed have serious doubts about the existence of a real flesh and blood person behind the Jesus(es) of the New Testament Gospels. This is not just an argument from silence either. He makes a clear case that the evidence points to the Gospel Jesus as a literary creation and not the putative founder of a faith. That Christians fabricated their epistles and Gospel stories is not news but that their pious fiction reaches back into the most pivotal details of the Jesus story is of great significance.
This is not a new thesis but this short little book puts it all in one package more succinctly than any other work I have read on this subject.
It is a simply excellent book. Well worth the read & highly recommended.