This book presents an introduction to and modern account of magnetohydrodynamic (MHD) turbulence an active field both in general turbulence theory and in various areas of astrophysics. The book starts by introducing the MHD equations certain useful approximations and the transition to turbulence. The second part of the book covers incompressible MHD turbulence the macroscopic aspects connected with the different self-organization processes the phenomenology of the turbulence spectra two-point closure theory and intermittency. The third considers two-dimensional turbulence and compressible (in particular supersonic) turbulence. Because of the similarities in the theoretical approach these chapters start with a brief account of the corresponding methods developed in hydrodynamic turbulence. The final part of the book is devoted to astrophysical applications: turbulence in the solar wind in accretion disks and in the interstellar medium. This book is suitable for graduate students and researchers working in turbulence theory plasma physics and astrophysics. Language: English