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.
Song/Tune Title
Book
I'm falling in love with someone
MFFB
I'm Flying
PCFB
I'm Flying
RLUBFB4
I'm Flying
UBFB
I'm flying high
MFFB
I'm Forever Blowing Bubbles
BFBE
I'm forever blowing bubbles
MFFB
I'm Forever Blowing Bubbles
RLBFB
I'm getting sentimental over you
NRBV3
I'm Glad I'm Not Young Anymore
MFB
I'm Glad I'm Not Young Anymore
RLUBFB4
I'm Glad I'm Not Young Anymore
UBFB
I'm glad there is you
NRBV2
I'm Glad There Is You
RLBFB
I'm Glad There Is You (In This World Of Ordinary People)