How to tell books from the same series (Atleast mine)

A list containing multiple books that have a series.

For now, contains:
Series 1) (FemNagisa, OOCKarma, KarmaGisa, Cliche & Sappy AF)
1. Mesmerizing Red, Enthralling Blue (HALF-COMPLETE)
2. Blue-Dyed Strawberry (NOT WORKED ON YET)
Series 2) (FemKarma, OOCKarma, KarmaGisa, Comedic, Somewhat Sappy)
1. Reversals (BEING WORKED ON)
2. Bindings (NOT WORKED ON)
3. Bondage (NOT WORKED ON)