The Vienna Atomic Line Data Base (VALD) has been significantly improved in its second version (VALD-2), offering enhanced data for a wide range of neutral species and ions. This update includes critically evaluated data from experimental measurements and theoretical calculations, essential for accurate stellar atmosphere modeling and high-precision spectral analysis. VALD-2 now contains new data for 34 atoms and 51 ions, with some species being newly included for the first time. The database now includes a detailed referencing system to properly credit all atomic data contributors, and software modifications allow users to specify individual extraction parameters and control the quality ranking of line data. A World-Wide-Web interface provides easy access to all new features. The database is now more efficient, with compressed data storage allowing for more information to be stored on the same disk. Mirror sites have been established to enhance performance and ensure data availability. The new data format includes more detailed parameters for each spectral line, such as oscillator strengths, excitation energies, and Landé factors. The software has been improved to handle over 50 million lines efficiently, with new extraction options and a more flexible user interface. The database now includes molecular lines and is expected to be extended in future versions. The new data has been carefully evaluated and ranked, with quality checks ensuring reliability. The database now includes detailed information on the accuracy of oscillator strengths and provides references for each line. The improvements in VALD-2 ensure that users can access high-quality atomic data for a wide range of applications in astrophysics and spectroscopy.The Vienna Atomic Line Data Base (VALD) has been significantly improved in its second version (VALD-2), offering enhanced data for a wide range of neutral species and ions. This update includes critically evaluated data from experimental measurements and theoretical calculations, essential for accurate stellar atmosphere modeling and high-precision spectral analysis. VALD-2 now contains new data for 34 atoms and 51 ions, with some species being newly included for the first time. The database now includes a detailed referencing system to properly credit all atomic data contributors, and software modifications allow users to specify individual extraction parameters and control the quality ranking of line data. A World-Wide-Web interface provides easy access to all new features. The database is now more efficient, with compressed data storage allowing for more information to be stored on the same disk. Mirror sites have been established to enhance performance and ensure data availability. The new data format includes more detailed parameters for each spectral line, such as oscillator strengths, excitation energies, and Landé factors. The software has been improved to handle over 50 million lines efficiently, with new extraction options and a more flexible user interface. The database now includes molecular lines and is expected to be extended in future versions. The new data has been carefully evaluated and ranked, with quality checks ensuring reliability. The database now includes detailed information on the accuracy of oscillator strengths and provides references for each line. The improvements in VALD-2 ensure that users can access high-quality atomic data for a wide range of applications in astrophysics and spectroscopy.