In the past, ad campaigns in YouTube lacked the targeting capabilities found in Google AdWords.
Now with Google Adwords for video, advertisers can do comprehensive targeting options such as demographics, keyword, interest categories, topics, and specific publisher placements similar as in Google Adwords that will help in your digital marketing!
Advertisers can now link their Youtube accounts to their Adwords accounts and managed from the Adwords interface.
It offers 2 formats:
TrueView In-stream: Ads play as a pre-, mid- or post-roll of YouTube partner videos of all lengths
TrueView In-display: Against related content across YouTube videos and the Google Display Network