This booklet has Mr. Mackay’s variations on some standard effects such as:

– a ring release from two ropes 
-his handling of tying a knot in a length of rope without releasing the ends 
-his own method for marking cards 
-a routine for the classic effect of making a chosen card travel from a packet of cards in one envelope to a packet of cards in another envelope (using a method that requires no palming)
He has also devised an original key card that functions like a breather card. There are also several thought transmission effects, including a way of secretly conveying information using a wooden match. Some interesting ideas.