Things I wish new Amazon sellers knew before uploading product images

I’m in the process of learning about Amazon FBA and preparing a product listing, and I’m a bit confused about the image requirements.

Amazon suggests multiple images, but I’m not sure:

– how much effort sellers usually put into each image

– whether lifestyle / infographic images actually impact conversions

– how detailed the product description really needs to be early on

For those who’ve already launched:

What did you personally focus on the most for your first listing — images, copy, or something else?

Would really appreciate hearing what worked (or didn’t) for you.