Digital microfluidics in today's microfluidics -- Theory of wetting -- The physics of droplets -- Electrowetting theory -- EWOD microsystems -- Introduction to liquid dielectrophoresis -- Electriwetting on curved surfaces -- Biological applications of EWOD -- Cell manipulations in EWD -- Chemical applications -- DMF for optofluidic microdevices -- Droplet on deformable surfaces--Elasto-capillarity and electro-elasto-capillarity -- Acoustic methods for manipulating droplets -- Introduction to droplet microfluidics and multiphase microflows -- Epilog.