By Mark Ellis Editor's note: Mark shares great tips on how he works on his detective series. Some key takeaways that apply to every writer when doing research include: The internet is a great starting point and useful for specific details, like the weather on a particular day To dig deeper, history books, biographies, and diaries are helpful, as are novels … [Read more...] about Guest Post: How I Go About Making My Wartime Detective Series Historically Accurate