Comparison of different composites. The composites by Lusso et al. (2015), Vanden Berk et al. (2001), Telfer et al. (2002), Francis et al. (1991) are normalized to the X-Shooter composite at ~1450 Å and the composite by Glikman et al. (2006) is normalized to ours at ~3850 Å. Significant differences are visible blueward of Lyα due to differing IGM correction methods. Above 5000 Å significant host galaxy contamination is visible in the composite by Vanden Berk et al. (2001). Overplot in blue is a power law with slope α_λ = −1.70 and normalized at ~1450 Å.