Cub Scout Leader Knots
Medals and Embroidered Knots
Only five medals may be worn at a time pinned in a single row immediately above the seam of the left pocket. Knots are worn above the left pocket in rows of three. The order of wearing of medals and knots is at the discretion of the wearer. It is suggested that the medal or knot deemed most important by the wearer be worn on his or her own right. Embroidered knots are representative of pin-on medals or around-the-neck awards and are designed for the convenience of the wearer. In the case of the District Award of Merit and Professional Training Award, the knot is the only wearable insignia. The knots are listed here in alphabetical order.

The loop of the embroidered square knot that comes in front of the standing part is always to the wearer's right. In knots where both strands are the same color and therefore difficult to distinguish which strand comes in front, use the above drawing to determine wearer's right. Knots are worn with the distinguishing color (not white) toward the wearer's right.
Here is a 4 page document outlining some of the guidelines for wearing the knots, and also the information about each knot.
Information obtained from the Insignia Guide for Scouting - ISBN: 978-0-8395-3066-4