>>13368
This.
Depending on what topic you are writing on, it might require a lot of research, digging through sources and doing fact-checking and including footnotes and explanatory notes.
Richard Herrmann, a Norwegian news correspondent in London, wrote several highly entertaining non-fiction books about daily life in England, famous court cases from Old Bailey, the history of London, and British monarchs. His inclusion of humour, and including all kinds of interesting lesser known events of history, as well as the less flattering events and characteristics. I think his wit and sense of humour helped greatly in making history more accessible to the general public.
I am currently working on a genealogical book, and the amount of fact-checking, research and proofreading is very high -- I don’t want to have to release corrections after I’m finished.
The contents are almost exclusively names (often with several spelling-variants in the various sources) and dates and biographical facts, so compiling these facts take up a lot of time before I can try to make a coherent list of ancestors and descendants. I am also planning on having several ahnentafel and family trees, which also requires a lot of fact checking.
