J. P. Codnia has been writing and drawing for fifteen years. He has worked as a part-time instructor, developing the stories and characters for the Liz McGillan & Wanda Newtowne book series.J. P. Codnia has been writing and drawing for fifteen years. He has worked as a part-time instructor, developing the stories and characters for the Liz McGillan & Wanda Newtowne book series.