There is no documented or widely recognized "Heinrich method" for learning languages. It's possible you're misremembering or mistyping the name.

To help me understand your query better, could you please clarify:

* Who is Heinrich? Please provide more information about this individual.

* What context are you asking about? For example, are you asking about a specific time period or language?

With more details, I can try to help you find the information you're looking for.