Salesforce - SOQL query for values from relate objects

Unlike TSQL, SOQL does not use joins on related tables (objects). Instead, the related object is referenced directly in the query by replacing the 'c' at the end of the custom object name with 'r'. In the following example I have three custom objects, Project_Geographic_Area__c, Project__c, and Geographic_Area__c. The Project_Geographic_Area__c has a foreign key field, Project__c, to the Project__c table, and a foreign key field, Geographic_Area__c, to the Geographic_Area__c table. I want to query Salesforce for the Name field from the Project__c table and the Country__Code__c field from the Geographic_Area__c table. So, replacing the ‘c’ with an ‘r’ in the names of our related tables and appending the field names, the resulting query is “Select Project__r.Name, Geographic_Area__r.Country_Code__c from Project_Geographic_Area__c.”