Pastor Tim wrote a book discussing the encouragements Apostle John gave to his churches. It is a compilation of his sermons as he studied through 1 John. His book can be purchased online through Christian Book, Amazon, Barnes & Noble and other outlets. It is also available electronically on BookNook, Kindle and iBook.
While signing books in Horizon Books of Traverse City Michigan, Up Front Fridays hosts Amy Reynolds (owner of Horizon Books) and Cymbre Foster interviewed Pastor Senter on July 8th 2016. You can find an edited version of this interview here.