Could you clarify what you need help with regarding trademarks? Here are a few areas I can assist with:
Definition: What a trademark is and what it protects
Types: Logos, names, slogans, etc.
Registration: How to register a trademark (e.g. with the USPTO)
Search: How to check if a name or logo is already trademarked
Enforcement: What to do if someone infringes on your trademark
International trademarks: How they work across countries