Video tutorial Introduction to High-order Harmonic Generation I (Lund University) Introduction to High-order Harmonic Generation II (Lund University) Attosecond correlation metrology at seeded free-electron laser (Uni Freiburg) Attosecond photoionization time delays (Lund University) Quantum state tomography of photoelectrons (Lund University) Femtosecond light sources for High-order Harmonic Generation (Amplitude) Generation of intense XUV pulses using a sedeed FEL (FERMI)