Connect your iPhone to your computer with a USB cable
Unlock your iPhone and tap Trust This Computer if prompted
Open the Photos app on a Mac or the Photos app on Windows
Select your iPhone under Devices or Import
Choose the photos you want to transfer
Click Import Selected or Import All New Photos
Wait for the transfer to finish
On Windows, you can also open File Explorer and copy photos from the DCIM folder
On Mac, you can also use AirDrop to send photos from iPhone to computer
On Windows, you can also use iCloud Photos to sync photos automatically
On Mac, you can also use Image Capture to import photos from your iPhone