How do I read online tabalture?

[BassGeetar]

Ok well I was reading a book "progressive Bass" and the tabaltures are different in it then it is on bassmasta.net's tablature. If anyone could point me in the right direction of reading them that would be great.

[FatherFunk]

The letters on the left side are the strings. The numbers are the frets. 0 means open (don't hold anything down). That's all I can really tell you, some sites have the measures put on there too.