Online course covers key topics of superconducting qubit physics. The course contains not only necessary theoretical points but also a lot of unique practical information, which makes it useful both for an experimentalist and a theoretician. The online course is oriented on master and PhD students starting work on their thesis in a qubit laboratory. It starts with discussion on quantum gates, algorithms and physical implementations of qubits focusing on superconducting qubits in particular. The types of superconducting qubits are described as well as ways of their measurements. A separate module of the online course gives detailed information about the equipment one might use in order to fabricate and measure superconducting qubits.