Authors are invited to submit papers for presentation at the IEEE Photonics Conference 2015. Topics in the Biophotonics (BIO) track include microscopy and optical tomography techniques; optical biosensors and multimodality systems for early diagnostics; minimally invasive diagnostic methods and systems, including spectroscopy; and high-resolution 3-D bioimaging techniques, including single-cell and intracellular imaging. Accepted abstracts (deadline will be May 4) will be published in the Advance Program, and accepted summaries will be published in the Conference Proceedings.