Powerful sales are all strong in these seven basic skills Powerful sales are all strong in these seven basic skills Powerful sales are all strong in these seven basic skills Powerful sales are all strong in these seven basic skills Powerful sales are all strong in these seven basic skills Powerful sales are all strong in these seven basic skills Powerful sales are all strong in these seven basic skills Powerful sales are all strong in these seven basic skills Powerful sales are all strong in these seven basic skills Powerful sales are all strong in these seven basic skills Powerful sales are all strong in these seven basic skills