INTRODUCTION; ; SINGLE, TWO, THREE AND FIVE DEGREES OF FREEDOM; Effect of Nozzle Shape; Schematic of Fluidic and Acoustic System; Surface Tension, Viscosity and Compressibility, Frequency Dependent Damping; Piezo Theory; Rayleigh's Method; Pulse Shape Definition; Non-Linear Effects; Fluidic Cross-Talk; Examples; ; LONG WAVE GUIDE THEORY SINGLE & MULTI NOZZLE PRINT HEAD; Wave Speed; Governing Equations; Solution Strategies; Damping; Complex Pulse Shapes, Multi Pulsing; Examples; ; DROPLET FORMATION; Energy Consideration; Influence of Meniscus Position on Droplet Speed and Size; Influence of Droplet Formation on Dynamics of Fluid Motion; Cooling of Free Flying Droplet; Jetting of Viscoelastic Inks; Examples; ; REFILLING; Surface Tension Driven Refilling; Inertia Effects; Start-up Effects; Multi Pulsing & Gray Scaling; Examples; ; IMPACTING DROPLETS; Viscosity and Surface Tension Dominated Spreading; Inertia Dominated Spreading; Splashing; Examples; ; PERMEATION AND DRYING; Washburn Theory; Drying of Liquid Droplets; Examples; ; CONCLUSIONS AND OUTLOOK