Modern blog formats allow me to make posts of diverse topics as I work on them, yet organize them according to subjects/categories.  The “blog roll” is the reverse chronological sequence of my postings, which may seem semi-random or disorganized to some– select a category to find the coherent themes. If you find them of interest, I invite you to “subscribe” and get an email note when I make a post. Don’t worry, I am not very prolific in this art, so there is no danger of flooding your inbox.