I've been using Social Media Collateral for years and have seen greater interactions via social media (the perfect place to employ this method) including comments, likes and even shares and sales!
When my newest trilogy, a Sci-fi space opera, was only entering its second draft, already I'd been creating Social Media Collateral in order to build interest. I placed these again when the book is released on my own pages, as well as related group pages across multiple networks with links to purchase the book or ebook.
Writing and marketing go side-by-side and Social Media Collateral tend to excite your potential buyer through intriguing quotes and accompanying images. Social Media Collateral can vary in size and there is no rule to follow when creating one. However, if you plan to use it as an ad on Facebook, remember not to use too many words to get your point across. FB ads limit the amount of space the copy employs on your Social Media Collateral.
Below are some examples of the resent Social Media Collateral I've posted for the trilogy when it was till months out from being completed.
