ESO has signed an agreement with an international consortium of institutes for the design and construction of the HARMONI instrument for the European Extremely Large Telescope (E-ELT). The agreement was signed by Grahame Blair, Executive Director of Programmes, Science and Technology Facilities Council (right), on behalf of the consortium, and Tim de Zeeuw, ESO Director General (left), at a ceremony at the Mathematical Institute, University of Oxford, United Kingdom, on 22 September 2015. HARMONI, or the High Angular Resolution Monolithic Optical and Near-infrared Integral field spectrograph, will be one of the first-light instruments installed on the giant telescope and will function as the workhorse instrument for visible light and near-infrared spectroscopy in the wavelength range 0.5–2.4 µm.