  Looking for spectroscopic families in the whole set of discovered diffuse
interstellar bands (DIBs) is an indirect trial of solving the problem of DIBs'
carriers. Basing on optical high resolution spectra, covering the range from
5655 to 7020 \AA, we found few relatively strong DIBs which are not well
correlated one with another and therefore they may play a role of
representatives of separate spectroscopic families. In the next step we
indicated DIBs which tend to follow the behaviour of their representatives. As
a result of our analysis we propose few, probably not complete yet,
spectroscopic families of DIBs.
