How to change Email logo in Magento 2?

To change the company logo shown in magento email notifications:

1. Log in to backend and go to Content > Design >  Configuration.

2. Click Edit in front of your theme.

3.  Scroll down to Transactional Emails section.

4. Click Upload button next to Logo Image text.

5. Select the logo on your computer.

6. Save Configuration

7. Go to Cache Management and refresh cache types.