Here we provide several video lectures that can help the user to understand the theory behind the SSCHA, as well as how it can be used to calculate Raman and Infrared spectra, the electron-phonon interaction, and the thermal conductivity:

- Theory of lattice vibrations and anharmonicity
- Non-perturbative anharmonicity and the SSCHA
- Second-order phase transitions in the SSCHA
- Spectral functions and spectroscopic properties
- Raman and Infrared spectra of strongly anharmonic materials
- Theory of the electron-phonon interaction and superconductivity
- Strengths and limitations of the SSCHA: how does it compare with other approaches?
- Thermal conductivity in strongly anharmonic crystals

# Theory of lattice vibrations and anharmonicity

Lecture given by Francesco Mauri at the 2023 SSCHA School:

# Non-perturbative anharmonicity and the SSCHA

Lecture given by Ion Errea at the 2023 SSCHA School:

# Second-order phase transitions in the SSCHA

Lecture given by Raffaello Bianco at the 2023 SSCHA School:

# Spectral functions and spectroscopic properties

Lecture given by Raffaello Bianco at the 2023 SSCHA School:

# Raman and Infrared spectra of strongly anharmonic materials

Lecture given by Antonio Siciliano at the 2023 SSCHA School:

# Theory of the electron-phonon interaction and superconductivity

Lecture given by Giovanni Marini at the 2023 SSCHA School:

# Strengths and limitations of the SSCHA: how does it compare with other approaches?

Lecture given by Lorenzo Monacelli at the 2023 SSCHA School:

# Thermal conductivity in strongly anharmonic crystals

Lecture given by Đorđe Dangić at the 2023 SSCHA School: