  Heat transfer can differ distinctly at the nanoscale from that at the
macroscale. Recent advancement in computational and experimental techniques has
enabled a large number of interesting observations and understanding of heat
transfer processes at the nanoscale. In this review, we will first discuss
recent advances in computational and experimental methods used in nanoscale
thermal transport studies, followed by reviews of novel thermal transport
phenomena at the nanoscale observed in both computational and experimental
studies, and discussion on current understanding of these novel phenomena. Our
perspectives on challenges and opportunities on computational and experimental
methods are also presented.
