  Over the past decades, libraries of stellar spectra have been used in a large
variety of science cases, including as sources of reference spectra for a given
object or a given spectral type. Despite the existence of large libraries and
the increasing number of projects of large-scale spectral surveys, there is to
date only one very high-resolution spectral library offering spectra from a few
hundred objects from the southern hemisphere (UVES-POP) . We aim to extend the
sample, offering a finer coverage of effective temperatures and surface gravity
with a uniform collection of spectra obtained in the northern hemisphere.
  Between 2010 and 2020, we acquired several thousand echelle spectra of bright
stars with the Mercator-HERMES spectrograph located in the Roque de Los
Muchachos Observatory in La Palma, whose pipeline offers high-quality data
reduction products. We have also developed methods to correct for the
instrumental response in order to approach the true shape of the spectral
continuum. Additionally, we have devised a normalisation process to provide a
homogeneous normalisation of the full spectral range for most of the objects.
  We present a new spectral library consisting of 3256 spectra covering 2043
stars. It combines high signal-to-noise and high spectral resolution over the
entire range of effective temperatures and luminosity classes. The spectra are
presented in four versions: raw, corrected from the instrumental response, with
and without correction from the atmospheric molecular absorption, and
normalised (including the telluric correction).
