Mike Monteiro at CreativeMornings/San Francisco, March 2011 gives you some fundamental business knowledge that creatives need to know before doing work with clients. It’s a little dated, but still true. GDC also had a few good talks on this as well:

• Practical Law 101: https://youtu.be/8eAW-7Js7NA?si=62tE4gMuyYnBavHU
• Practical Contract Law 201: https://youtu.be/t8UFJ3obm-Q?si=Heu14EjzRosvRda3
• Practical IP Law 301: https://youtu.be/ePQcAjuiSEo?si=QcQpVIruot3USIhv
• Law around protection of Ideas: https://youtu.be/uxjPJ-FFSFU?si=ozKQqq1uleowosDb

Make a contract before anything starts or walk away.

See other talks at https://creativemornings.com/talks