Dear readers, This issue of the journal Thermal Science deals with several topics. Besides classical heat transfer topics, you will find papers dealing with processes in micro heat pipes, refrigeration systems for automobile applications, and processes in magnetic fields. This time again, we pointed out to your attention the use of solar energy for different applications. Once again, we want to remember you that you can find our journal Thermal Science on Web of Science, Science Citation Index, links: Thompson Scientific - Web of Science or ISI Knowledge