C3 talks come in several varieties. There are hardcore tech talks about actually attacking and exploiting devices (security & safety) and more hardware-oriented talks about building things (hardware & making). Next you have lectures about general science and engineering. On the less technical side there is one track about ethics, society and politics and another one for art & beauty.

Apart from the talks there are usually workshops, special interest groups (knitting, BSDM,...) and dedicated space for socialising and collaborating with others on projects on site.