These proceedings comprise invited and contributed papers presented at the 14th International Conference on X-Ray Lasers (ICXRL 2014). This conference is part of a continuing series dedicated to recent developments and applications of x-ray lasers and other coherent x-ray sources with attention to supporting technologies and instrumentation.New results in the generation of intense, coherent x-rays and progress toward practical devices and their applications in numerous fields are reported. Areas of research in plasma-based x-ray lasers, 4th generation accelerator-based sources and higher harmonic generation, and other x-ray generation schemes are covered. The scope of ICXRL 2014 included, but was not limited to:Laser-pumped X-ray lasersDischarge excitation and other X-ray laser pumping methodsInjection/seeding of X-ray amplifiersNew lasing transitions and novel X-ray laser schemesHigh Harmonic sources-Free-electron laser generation in the XUV and X-ray rangeNovel schemes for coherent XUV and X-ray generationXUV and X-ray optics and metrology-Driving laser technologyTheory and modeling of X-ray gain medium and beam characteristicsApplications of high brightness and ultrashort X-ray sources
