68 books • 4 series
Book #1: Hydroponics
Book #2: Hydroponic Garden
Book #4: Hydroponic System
Book #5: Hydroponics for Absolute Beginners
Book #6: Hydroponics and Aquaponics
Book #1: Lastborn of Forsaken Roses
Book #2: Daughter of Hell
Book #3: Britons and Anglo-Saxons