The quick version of this part of the non-fiction book journey is 'do your research'. I have a friend who runs a small publishing house that specialises in certain kinds of memoir and self-help. Every week, she receives novels, and non-fiction proposals that are way outside her scope. This does not make her happy. Traditionally I would have said the best thing to do would be to buy a copy of one of the publishing guides, but now it's easy enough to go through a good number of books aimed at a similar readership as is your own in an online bookshop, noting down their publishers. Build a list of, say, ten likely publishers then visit their websites and explore them in detail. Look at how they describe themselves and what ranges of books they publish. Take a look at any guidance they have for authors. As mentioned in the previous part , try to find an appropriate contact (a commissioning editor, usually) to send a proposal to for each publisher. (Linked-In can sometimes help w