Marco's Comments:
Booklet of Al Mann about headline prediction without exchanging the prediction. The idea is very suspicios, as it requires to cut through the prediction envelope, cutting the prediction in half! Based on this concept, other two ideas are presented, to show an envelope containing a knotted rope or intertwined paper clips.
The interesting idea here is "Mandragora", a method to force a design (or newspaper section) after folding a paper in 16 parts and cutting it to separate squares. Al Mann presents a method to force one of two designs in a practical way.