Chess books about King's Pawn Openings

After 1.e4 e5 the alternatives to 2.Nf3 offer a trip down Memory Lane. While these lines occasionally undergo a slight revival, they are really only effective as surprise weapons; however, in this limited role they can be dangerous, as the resulting sharp positions require precise handling by black.
First off is 2.d4; after 2...exd4 the Centre Game, 3.Qxd4 is harmless, but the Danish Gambit, 3.c3, perhaps deserves more respect than it usually receives. Bishop's Opening, 2.Bc4, is sometimes used to avoid the Petroff Defence; it is playable but not likely to cause black sleepless nights. Some of the lines of the Vienna Opening, 2.Nc3, are indeed quite promising for white; unfortunately, the standard response 2...Nf6 3.f4 d5 is fully as effective as theory suggests.
Next is the King's Gambit, 1.e4 e5 2.f4. The King's Gambit has always been a risky opening for white, and it still is, especially when black decides to meet the challenge head-on and hang on to his extra pawn. After 2...exf4 3.Nf3, Fischer's Defence (3...d6) and the Kieseritzky Gambit (3...g5 4.h4 g4 5.Ne5) are two of the most critical tests of the King's Gambit's soundness; on the other hand, black's attempts to equalize by returning the pawn often just leave white with a nagging edge.

from Nunn's Chess Openings.