You must have access to the town of Arniun before you can do this. Start at Nam 
Cobanda Isle by talking to the Kowz behind the desk with all the tables around 
it to trigger a scene. Rita will want to take a test to get the Doctoral Degree. 
The only way to take the test is for her to find five books:

  At Halure in the Mayor's House: Look at the book shelf. 
  At Capua Torim in Fortune's Market HQ: Look at the bookshelf. 
  At Heliord in the Investigation Room: Look on the left side of the room. 
  At Mantanic in the Inn: Look at the bookshelf. 
  At Aurnin in Aurniun's HQ: Look at Flynn's dresser. 

Once you have all the books, go back to the Kowz, and take the test. You will be 
quizzed on past Tales series of games. It does not matter if you pass or fail; 
you still get the title either way.