Types of ads

Technology

The camera never lies

Edorsment

Association of ideas

Guilt

the ad makes you feel bad for not having the product (a safer seat for children)

a respected expert or celebrity supports the product (for example, a movie star)

the product is connected to a particular idea (for example, cars=freedom)

the product uses the last technology (for example, the lastest generation smartphone)

the product looks visually attractive or appealing(for example, the perfect burguer)