Note: Not all fake books or real books have the same format, most will have sheet music with chords marked, some also have lyrics, a few have tablature, they are sometimes also available in different keys and arrangements to suit different instruments.
For an excellent collection of fakebooks to buy, checkout www.sheetmusicplus.com, who have a selection of some 1200+ to chose from, they also have good search facilities AND include content indexes for their books.
Is You Is, Or Is You Ain't (Ma' Baby) Billy Austin, Louis Jordan
Is Your All On The Altar?
Island Girl performed by Elton John
Island in the sea
Island,The composed by Marilyn Bergman, Alan Bergman, I Lins