Before reading the book Sketch The Non-artist Guide to Inspiration Technique and Drawing Daily Life, I had no idea what “cross hatching” was. I then googled it and the site which gave most of the information was Pinterest.com. In fact, not only the information about “cross hatching”, it has a lot of other drawing techniques and tips as well. It is like a drawing techniques Wikipedia. I have been using it everyday after I discovered it. Thanks to all the strangers who are sharing their knowledge for free.
Here are my quick studies of “Hatching”: