§16§§Assimilating new research in the field of low-dimensional metals, this monograph provides a detailed overview of the current status of research on quasi-one- and two-dimensional molecular metals, describing normal-state properties, magnetic field effects, superconductivity, and the phenomena of interacting p and d electrons. It will be useful not only for frontier researchers with a broad interest in low-dimensional electronic and magnetic properties, but also for graduate students of solid-state physics and chemistry with some background knowledge of solid-state physics. It includes a number of fundamental and novel findings relating to the characteristics of these low-dimensional metals, which in future are likely to become standard material in textbooks on solid-state physics.§ §04§Introduction: Historical Remarks.- Basic Concepts.- Structural Aspects.- Normal-State Properties.- Magnetic-Field Effects.- Superconductivity.- Phenomena of Interacting ?- and d-Electrons.- Epilogue. §02§§N. Toyota: graduated in 1977 from Tohoku University§§1977-1985 research associate, Institute for Materials Research, Tohoku Univ., Japan§§1985-1994 associate professor, Institute for Materials Research, Tohoku Univ., Japan§§1994-1998 professor, Research Institute for Advanced Science and Technology, Osaka Prefecture Univ., Japan §§1998- professor, Physics Department, Graduate School of Science, Tohoku Univ., Japan§ §02§r>§§§J. Müller: graduated in 2002 from the Technical University Dresden, Germany;§§2002 - 2003 Research associate at the Max-Planck Institute for Chemical Physics of Solids in Dresden, Germany; §§2003 - Research associate at the Center for Materials Research and Technology (MARTECH) at Florida State University in Tallahassee, FL, USA§