This is an excellent First Aid spiral-bound large-format leaflet for serious injuries. For one thing, it helps distinguish what are really serious injuries. Being written for "At Sea", it assumes the caregiver doesn't have immediate access to medical support personnel - and says when you absolutely must get help as soon as possible. Most First Aid manuals are too long, and the type is too small, to be used in a real emergency. This is a good attempt at creating something that can be used as a medical emergency guide when a medical emergency occurs.