While I do understand "guidelines", tools are tools and need to suit the user and work to be accomplished. Generally hatchets are heads less than 2lbs and hung on sticks less than 19"
Boys axes or limbing axes, are heads 2-3lbs hung on sticks 24-28".
Axes are 3+lbs and hung from 28-40" sticks. House axes being an exception as they are a full size head on a 19" handle.
Tomahawks have an eye that is pretty much round and are a slip fit, no wedging.
Now, many felling or topping axes are full sized heads on handles in the 20's. New England axes from around the turn of the 19-20th century were often sub 30".
I personally like my limbing axes to be about 2 1/2lb heads hung on a 29-31" handle. Outside normal guidelines but I like them. Felling axes, I like short, full size head on a 27" stick. Bucking axes- full sized head on a 32-34" handle(I am 5'10").
All of these are my observation and opinions. NOT hard fast rules.
Bill