In addition to the books here David has six other sci-fi books listed on Amazon: https://www.amazon.com/author/davidkscholes
He has been a regular contributor to the Antipodean SF and Beam Me Up Podcast sites and more recently Farther Stars Than These site. He has also been published on the Bewildering Stories, 365 Tommorrows, and (the former) Golden Visions sites.
He has written three sci-fi series: the 12 part “Alien Hunter” series for then Golden Visions Magazine in 2011/12, the “Trathh” series for the Beam Me Up Pod Cast site in 2012/13, and the “Human Hunter” series also for the Beam Me Up site in 2014/15.
He is about to publish another collection of short stories entitled "Human Hunter and Other Science Fiction Stories" .