Each page on your site should have exactly one title, and it should go in TITLE field.
The first 11 characters of each title ought to give a hint about the page content, so that when people scan past it among a lot of other titles (in a search results page, for example), it's immediately obvious what the page is about.
Front-loading important words will also help users: the top of their browser's screen displays the beginning of the title for each page they have open. If they decide to bookmark your page, a short & meaningful title will help them avoid unnecessary editing on your behalf.
Keep your titles as short as you can while keeping meaning: shorter titles are easier for people to scan, and longer titles will get cut off in search engine results anyway.
- Title Tag: Best Practices for SEO