You may be intimidated the first time you crack open a fake book. However, if you're familiar with (or at least willing to learn) your chords, then that's half the battle. A fake book contains pieces written out in lead sheet form. That is, you see the melody and chord symbols written above.
Jazz Music and Improvisation Guide Books
Music Practicing 101: Every Other Bar Drill
On Scaring Classically Trained Music Teachers with Contemporary Idioms
Another Way to Practice Technique
This is more for the advanced students, music teachers and anyone who wants to learn jazz chords and scales. The bottom line is that instead of practicing your technical exercises by key, you are practicing them by their shared root: Getting Started on Jazz Technique - Musespeak Studio