Sacred GardenHolistic Sage, Alan Rogerson, Jessica Sproul, Susan Dahhhling, Derek Nakamura · First published 2021Open the Tome
Vengeance of the SkullDerek Rogerson, Aileen Nevin, Vivienne Ainslie · First published 2021Open the Tome
The Secret of the SkullDerek Rogerson, Vivienne Ainslie, Aileen Nevin · First published 2020Open the Tome
Speaking Effectively IndiaJeremy Comfort, Pamela Rogerson, Trish Stott, Derek Utley · First published 2002Open the Tome
Speaking EffectivelyJeremy Comfort, Pamela Rogerson-Revell, Trish Stott, Derek Utley · First published 1994Open the Tome
