Best Selection is the title of two compilation albums released by Aimer on May 3, 2017.

Each album was released in three versions: a regular CD edition, a limited CD + Blu-ray edition (Type-A), and a limited CD + DVD edition (Type-B).

[1][2] Best Selection "blanc" is a compilation of Aimer's soft ballads such as "Kataomoi", "Rokutosei no Yoru", and "Chouchou Musubi", and includes the new songs "March of Time" and "Kachou Fugetsu".

[3] ^ Shipments figures based on certification alone.

In contrast to the "blanc" album, Best Selection "noir" compiles Aimer's heavier, rock-oriented tracks such as "RE:I AM", "Brave Shine", and "StarRingChild", and includes the new song "zero".