Watch the Learning Songs online guitar lesson by Rich Maloof from Acoustic Guitar For Beginners

This clip explains the elements you're likely to see on a page from a guitar book. There are a number of styles for presenting these elements, but most include the same information. Some you need, and many you can just ignore for now.
Song Title
Songwriter credit
Chord blocks
Alternate tuning (if relevant)
Time signature - look for songs in 4/4
Chord names, and sometimes chord grids, above Music and lyrics
Standard Music notation