The colloquium "Phononics: Manipulating Heat Flow with Electronic Analogues and Beyond" explores the potential of using phonons, the quantum mechanical counterparts of lattice vibrations, for information processing and energy transfer. The authors argue that phonons, often considered waste energy, can be manipulated similarly to electrons and photons, enabling controlled heat transport and even information processing. They present theoretical models and experimental setups to demonstrate how phonons can be used to create devices such as thermal diodes, transistors, logic gates, and memory. These devices operate by exploiting the nonlinear dynamics and symmetry breaking in phononic systems, allowing for the manipulation of heat flow through temperature biases or external fields. The colloquium also discusses the experimental realization of these concepts, including the use of asymmetric nanostructures and time-varying thermal bath temperatures to achieve fine-tuned control and counterintuitive behaviors. The authors highlight the potential of phononics in advancing information processing and energy management, despite the challenges posed by the unique properties of phonons compared to electrons.The colloquium "Phononics: Manipulating Heat Flow with Electronic Analogues and Beyond" explores the potential of using phonons, the quantum mechanical counterparts of lattice vibrations, for information processing and energy transfer. The authors argue that phonons, often considered waste energy, can be manipulated similarly to electrons and photons, enabling controlled heat transport and even information processing. They present theoretical models and experimental setups to demonstrate how phonons can be used to create devices such as thermal diodes, transistors, logic gates, and memory. These devices operate by exploiting the nonlinear dynamics and symmetry breaking in phononic systems, allowing for the manipulation of heat flow through temperature biases or external fields. The colloquium also discusses the experimental realization of these concepts, including the use of asymmetric nanostructures and time-varying thermal bath temperatures to achieve fine-tuned control and counterintuitive behaviors. The authors highlight the potential of phononics in advancing information processing and energy management, despite the challenges posed by the unique properties of phonons compared to electrons.