A how-to is usually meant to help non-experts and consequently may leave out details that are only important to experts.
One of the earliest how-to books was published in 1569 and entitled, A booke of the arte and maner, how to plant and graffe all sortes of trees: With divers other new practise, by one of the Abbey of Saint Vincent in Fraunce by Leonard Mascall.
A similar concept can be seen in many of the For Dummies series of tutorials and also in many other introductory surveys entitled with the suffix “101” .
