Which of Les's videos have been made into booklets?

According to the transcript, every videotape up through 16 had at that point been transcribed into booklet form. The teacher explains that this announcement was something he had wanted to make for a long time, and he notes that they were getting a good response from those little books, adding that he would have never dreamed it. He also reminds the television audience that all the past programs are available on videotape, and he tells people they are free to copy or dub the tapes and pass them on, without worrying about the copyright, since the copyright exists only to prevent someone from copying the material to make a profit. He extends this freedom to whatever material, the books or the videotapes, because he feels the time is short and wants to get the word out to as many as can possibly hear it.