The photon has come a long way since it was first defined as a particle that spends “only a minute fraction of its existence as a carrier of radiant energy”. In this talk we will look at how to make photons, and why you might want to; how to count photons, and why you might want to; and how to entangle photons—either with each other, or with other particles such as phonons—and why you might want to. On the way we will encounter confusion, drums, hypercubes, and if we have time, ignorance. [1] Senellart, Solomon, & White, Nature Nanotechnology 12, 1026 (2017). [2] Howard, Gillett, Pearce, Abrahão, Weinhold, Kok, and White, arXiv:1811.03011 (2018). [3] Howard, Weinhold, Shahandeh, Combes, Vanner, White, and Ringbauer,Physical Review Letters 123, 020402 (2019). [4] Goswami, Cao, Paz-Silva, Romero, and White, arXiv:1807.07383 (2018). [5] Goswami, Giarmatzi, Kewming, Costa, Branciard, Romero, and White,Physical Review Letters 121, 090503 (2018).