Exactly how truthful do I have to be, if I am writing something which is technically non-fiction, but which I want to make entertaining and fun to read?
There's been much debate over the years (and decades) about this, but the present view of publishers and writers, I believe, is best summed up by Roy Peter Clark, one of the gods of writing and a hero of mine. Clark is a scholar at The Poynter Institute in the US and one of the finest thinkers on questions of fiction and non fiction.
You have to tell the truth. Do not add. Do not deceive. End of argument.
Click on the word document below for an essay Clark wrote on the subject.