What type of knot is recommended to prevent the working end of a rope from slipping back through itself?

The overhand safety knot is specifically designed to prevent the working end of a rope from slipping back through itself. It is often used as a backup knot in various rigging and rescue scenarios to secure the rope and ensure that once the primary knot is tied, it won't come undone or allow the working end to slip. This knot is simple to tie and serves as an effective measure to enhance safety, especially when the risk of slippage could compromise the situation or the safety of individuals involved.

In contrast, while the square knot and the figure-eight knot serve specific functions in tying two ropes together or creating a secure loop, they do not inherently provide the safety features against slipping in the same way the overhand safety knot does. The Bowie knot, known for its use in specific applications, does not primarily address the concern of preventing slippage in the working end. Therefore, the overhand safety knot is the most suitable choice for ensuring the working end of a rope remains secure.