This Daily Study Group introduces you to the properties and applications of complex numbers and functions with the help of visualization and computation tools in Wolfram Language. The first sessions cover the complex plane, complex numbers and analytic functions. Later sessions focus on complex integration, the residue theorem and applications. The lessons used in this Study Group are taken from the upcoming Wolfram U course Introduction to Complex Analysis. Sign up for the Study Group to gain early access to the course framework and certification opportunities.