R.A. Spratt talks Friday Barnes March 31, 2014 By raspratt R.A. Spratt talking about the first book in her new series, “Friday Barnes: Girl Detective”. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related About raspratt Author and television writer. Best known for writing the 'Peski Kids', 'Friday Barnes' and 'Nanny Piggins' series.