A relaxation massage is another name for a Swedish massage. A deep tissue massage is a type of therapeutic massage. A therapeutic massage is any type of massage that relieves pain or addresses a specific issue. Even if you don’t have a pain or specific issue, some people prefer deep tissue. So the determining factor becomes one of the amount of pressure one prefers. My suggestion is that if you are not sure, since you really aren’t going to know until you experience one or the other, is to book a deep tissue first. If you don’t like the pressure, communicate this to your therapist and they will adjust the remainder of the session to Swedish and adjust the price for the session accordingly. Deep tissue costs more than Swedish; this way it is easier to make a monetary adjustment. This way we find out what you prefer and the therapist will be glad that you are getting the service that you prefer and that you are satisfied.