Short answer
Amazon Author Central is where authors manage their public author profile on Amazon — bio, photos, books, and blog posts linked to their name.
Direct answer
Amazon Author Central is where authors manage their public author profile on Amazon — bio, photos, books, and blog posts linked to their name.
What authors usually misunderstand
Authors often confuse Author Central with KDP. KDP manages book listings; Author Central manages your author identity.
FloodGate's approach
FloodGate helps authors understand the difference and set up both when appropriate for their publishing path.
What this means for you
Claim your Author Central profile. It is your public face on Amazon, separate from your publisher account.