Phase LCs for the different variability classes considered in the OGLE sample. For each class, the first column shows the lightcurve with colors showing the different cycles. From the top the different variability classes are M, CEP, ELL, E, DST, RR, LPV, and the Random period Class. The second columns are the 32 × 32 histogram and the color represent the number of observation in each bin with a min-max normalization.