The CD courses by the late polyglot linguist, Michel Thomas, who, prior to his death, made use of a language teaching method which has been acclaimed and continues to be recommended by the public, who affirm that it has helped them to become conversationally proficient within only a few days, are highly effective.  Lingua Genesis has made use of these audio CDs during class time and agrees that this approach is positively unconventional, yet very worthwhile, not least because it encourages the learner to break down a foreign language into its component parts and reconstruct sentences for themselves, exclusively from the spoken source.