Preface -- Acknowledgments -- Author biographyTokamak MHD equilibrium -- The Grad-Shafranov equation -- Toroidal flux coordinates -- The tokamak force balance : the hoop forceIdeal MHD instabilities -- The global MHD spectrum -- Internal and external global MHD modes -- Radially localized modes : the Mercier criterion -- The ballooning modes and ballooning representation -- The peeling and free boundary ballooning modes -- The toroidal Alfv?en eigenmodes -- The kinetically driven MHD modes -- DiscussionResistive MHD instabilities -- The resistive MHD theory of Glasser, Greene and Johnson -- The resistive MHD ballooning modes -- The tearing mode and its coupling to interchange-type modes -- Discussion : neoclassical tearing modes, etc.Gyrokinetic theory -- The general gyrokinetic formalism and equilibrium -- The electrostatic gyrokinetic equation -- Electrostatic drift waves -- The electromagnetic gyrokinetic equation -- FLR effects on the interchange modes -- The kinetic ballooning mode theory -- DiscussionPhysical interpretations of experimental observations -- The tokamak confinement modes -- Enhanced electron transport -- Transport barriers -- Nonlocal transport -- The edge localized modes -- Blob transport -- Edge harmonic oscillationsConcluding remarks -- Appendix A. Derivation of the gyrokinetics equations -- The first harmonic solution of the gyrokinetic equation -- The gyrophase-averaged gyrokinetic equation -- The gyrokinetic vorticity equation