John Lundstrom's "First Team" books, about US naval aviation in the first six months of 1942, are excellent books to read. They are, "The First Team", "The First Team: The Guadalcanal Campaign", and "The First South Pacific Campaign: Pacific Fleet Strategy, December 1941-June 1942". I learned about Lundstrom from reading "Shattered Sword". Parshall and Tully credit Lundstrom with inspiring the line of questioning and research that led them to publish their book.
I'll second James Hornfisher's books, too: "Neptune's Inferno" covering the naval combat in the Guadalcanal campaign; "The Fleet at Flood Tide" covering the Mariannas campaign to the end of the war; and "The Last Stand of the Tin-Can Sailors" on the Battle off Samar. That story should be made into a movie.
I also recommend, "In Harm's Way", by Doug Stanton, about the sinking of the Indianapolis.
Reading the Lundstrom books, especially, filled in gaps in what I knew previously about the Pacific War. It's almost as if the focus in so much of what we read as kids lead one to think that we go from Pearl Harbor, to the Coral Sea and Midway, and Guadalcanal, and then all of a sudden, the Mariannas Turkey Shoot happens, then Leyte Gulf, and then Hiroshima and the deck of the Missouri. There's a lot in between that didn't get as much coverage, generally speaking.