The complete adventures of Jon Kent as Superman (so far). Also includes the crime syndicate TP which features Ultra Man and his origins, which provides a lot of context for Adventures of Superman.
Son of Kal-El Vol 1 HC - The Truth
Son of Kal-El Vol 2 HC - The Rising
Son of Kal-El Vol 3 HC - Battle for Gamorra
Adventures of Superman Jon Kent Vol 1 HC
Crime Syndicate TPB