Origin is one layer
Natural sources can include plants, soil and food. Manufactured smells can come from products, treated materials, interiors and industrial environments.
EXPLAINER
Natural vs Manufactured Smells
SmellBook separates where a smell comes from from how people describe it. A forest, fuel station and new-car interior can all have recognizable smell identities without belonging to the same source type.
Description can overlap
A manufactured smell can still be fresh, warm, sharp or woody. Descriptors should not be confused with origin.
Context still matters
New Car, Gasoline and Rubber are product or material experiences; Pine Forest and Soil are environmental or natural identities. The atlas keeps those distinctions visible.
This is an editorial classification framework, not a claim that natural smells are safer, better or more authentic than manufactured ones.