>Rick, If you are talking about OO then the right person to read is Alan Kay, after all he coined the term, so go tell him that inheritance is not part of it but interfaces are.

Hugo, I think inheritance certainly is important and has its place. I think it's "foundational OO" but still important.

An observation - I think some VFP developers over the years have tended to overstate the value a bit. Not a criticism, just an observation.