Jon boats are a great example of how a very simple boat design can be very practical, even if for limited purposes.
I’ve owned (and built!) several Jon boats over the years and have learnt to appreciate the ease of construction and maintenance that they provide, especially when you have good Jon boat plans at hand. They are excellent vessels for fishing, even standing up, for duck hunting (though I personally have never done that) and for other activities. They are often used by researchers when working in shallow river and lake waters.
There are a few peculiar characteristics to Jon boats (also known as johnboats, by the way). The most important of these is that their hull is almost flat. This makes them quite useless in rough waters, because they rise on the waves rather than go through them. This same hull, however, also makes them incredibly useful in calm waters, especially when they’re so shallow that other boat designs would simply hit the bottom. They are great for calm rivers and lakes and also marshes and bayous.
Original Youtube video here: Plywood Fishing Boat Plans – How To Build A Boat