Abstract : The intensive week will start with a brief reminder of the Interacting Boson Model (IBM1), and its concepts and symmetries. Afterwards the focus will be on various extensions. Among these are IBM with inclusion of other bosons (SDG, SPDF, etc.), IBM with neutrons and protons (IBM2, IBM3, IBM4), calculations with intruder states, IBM for odd-A and odd-odd nuclei. In the afternoons there will be also hands-on sessions. These will introduce some codes addressing different extensions of the IBM.