Answer:
As a reader, you would want to be cautious when reading an unauthorized biography because unless the information is cited and verified as correct, you don't know if the information provided in the biography is correct.
Step-by-step explanation:
For example, if you read in an unauthorized biography that Rosa Parks was born on March 16th, 1914, you would have no clue that this is in fact, incorrect. This is why you would need to either find a new biography that is authorized and verified or double check the information given.
Hope this helped!