This open access book centers on unveiling the latest methodologies, instrumentation, and facilities, alongside advancements in data processing, interpretation, and novel applications within neutron imaging—a technique predominantly utilized for fundamental materials research. The 12th World Conference on Neutron Radiography (WCNR-12) serves as a pivotal international platform uniting researchers, engineers, industry professionals, and university students to advance, deliberate upon, and disseminate a broad spectrum of topics within neutron imaging.This forthcoming conference proceedings encapsulates a compendium of manuscripts submitted to WCNR-12, offering a comprehensive snapshot of the cutting-edge technological and scientific progressions in neutron imaging. Organized in alignment with the principal themes of the conference, readers will encounter a well-rounded compilation balancing discussions on instrumentation, scientific applications, and software innovations.