2019-2023 General Class Audio Theory CourseGordon West, WB6NOA, Eric P. Nichols, KL7AJ, Pete Trotter, KB9SMG · First published 2019Open the Tome
2016-2020 Extra Class Audio Theory CourseGordon West, WB6NOA, with Eric P. Nichols, KL7AJ · First published 2016Open the Tome
2016-2020 Extra Class FCC Element 4Gordon West, WB6NOA, Eric P. Nichols, KL7AJ, Technical Editor, Pete Trotter, KB9SMG, Karin Thompson, K0RTX · First published 2016Open the Tome
Creative Cues from the CatGail P. Johnston, Eric P. Nichols, Kate Benjamin · First published 2016Open the Tome
Technician Class 2014-18 FCC Element 2 Radio License PreparationGordon West, WB6NOA, Eric P. Nichols, KL7AJ · First published 2014Open the Tome
