This proceedings volume is of the 10th International Conference of the well established series on Photoacoustic and Photothermal Phenomena. The Conference is concerned with the interdisciplinary applications of the acoustic and thermal phenomena generated in matter by the absorption of electromagnet fields. The application areas include: PA and PT spectroscopy; PA and PT imaging and microscopy; thermophysical properties; laser ultrasonics; ultrafast PA and PT phenomena; nonlinear phenomena and inverse problems; electronic and optical materials, thin film and devices; biological and medical applications; industrial applications; new instrumentation and methodology; NDE characterization; agriculture, food, and environment.