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Well the Academy Box set is primarily about Earth sector and the headquarters of Starfleet. While the
Price of Freedom book centered more on the UFP as a whole, the Box set details on Earth. It has a guide about important places on Earth and the solar system and has an additional book on how to run an Academy series, complete with staff and another book with adventures. As a bonus there is a map of the campus, of the solar system and illustrations of uniforms. But the best thing is your own Academy diploma
While its most use is when playing an Academy series, or at least in Sector 001, I also liked to read ist just for the information given. It has many nice details, e.g. a report about a restaurant by Tom Paris and visits many places from the series, e.g. Jupiter Station. It is also a great source to provide characters with backgrounds. It is definitely worth a buy.
We came in peace, for all mankind - Apollo 11