Nuclear resonance parameters for levels created in reactions with incident protons and a-particles, as well as other light charged particles such as deuterons, tritons, and He-3 nuclei, are of great interest for nuclear spectroscopy, astrophysical models, thermonuclear calculations and other applications. In the Landolt-Börnstein volume I/19A the parameters have now been compiled. No systematic compilation for such data has been performed so far. A large part of the experimental data has been produced during the last 10 years. The compilation was prepared by eminent experts in the fields. One of the characteristics of Landolt-Börnstein is that data are evaluated before they are accepted for compilation. The idea is to present 'best values' which can be used with confidence by non-experts. Preparing such best values also implied making corrections necessary because of different energy calibrations in various publications. Subvolume I/19A1 contains the data for nuclei up to Z = 18. In view of the large amount of data available some of the information is given on the CD ROM only. Parameters for nuclear levels produced in reactions with incident neutrons were previously published by Landolt-Börnstein in volumes I/16B and I/16C.