"Fundamentals of Google Trends"

The key functions and fundamentals of Google Trends are as follows: 

1. Search Volume Data:

Google Trends provides data on the volume of searches for specific keywords or phrases.  Normalization is used to display relative popularity rather than absolute search numbers in this data. 

2. Time Range: 

Users can select different time ranges to analyze trends, from the past hour to several years.  This helps in understanding how interest in a topic has changed over time.

3. Geographic Insights: 

Users can see how search interest varies by location with Google Trends. This can be useful for identifying regional trends and understanding local interests.

4. Related Queries: 

In addition to the primary keyword, the tool provides insight into related queries and subjects that are frequently searched for. This can help users discover new keywords and understand the context of searches.

5. Comparison Tool: 

Users can compare the popularity of multiple search terms simultaneously.  Analyzing rivals or different topics within the same category can benefit from this feature. 

6. Categories: 

Google Trends allows users to filter results by categories, such as health, sports, technology, and more.  This helps in narrowing down the search to specific areas of interest.

7. Real-Time Trends:

The platform also features real-time data on trending searches, which can highlight current events or popular topics that are gaining attention.

 8. Visualization: 

Google Trends presents data in easy-to-read graphs and charts, making it simple to visualize trends over time and across different regions.

9. Applications:

Businesses, marketers, and researchers use Google Trends for various purposes, including market research, content creation, SEO optimization, and understanding consumer behavior.