Comparison of the spectral range centred on the 670.78 nm Li feature in one of the Sun spectra (black thick line) and a target (green dashed line) with up to five spectra available for some stars. The upper panels show two stars classified as A (the same Li deficiency as the Sun), the middle panels show two stars classified as B (slightly more abundant in Li than the Sun), the bottom panels show two stars classified as C (pronounced Li feature).