The most important physical principles as well as the engineering equipment (components, assemblies as well as their function) for the regasification and compression of cryogenic liquefied gases (incl. biogas / methane from recent sources) are presented in this book. Practical advice is given on possible plant layout and design. Safety-related as well as product-specific designs are pointed out and their solutions are described. The book contains numerous references and summaries. The author is an engineer of chemical plant engineering as well as heat, ventilation and air conditioning technology with many years of practical experience in the field of cryogenic liquefied gases, their transport, regasification and compression. He is the inventor of several patented and implemented solutions.   This book is addressed to safety officers, plant operators, employees in direct contact with such plants as well as decision makers and approving authorities.