Aasimar source

[NMBLNG]

Quick question:

What book are Aasimar and Lesser Aasimar (PC races) found in?

[Diarmuid]

FRCS and PGtF respectively.

[Piggy Knowles]

Aasimar is in the Monster Manual (and the Forgotten Realm Campaign Setting). The "Lesser Planetouched" appeared in the Player's Guide to Faerun.

EDIT: Too slow!