How Do You Use the Keyboard To Select Multiple Items?

Hi Gary, any chance you can do a video on how to select items say for example in photos as I struggle to recall how to click multiple pics that are not in a row or pick like 3in a row then some from another sequence. Just confuses me..
Thanks.
struggling to select items in photos unsure what keys to use to select multiple items not in a row or are in a row
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John Jones