It really is user-friendly. Originally (as far as I know) from a 2013 series, these messages are divided according to topic and could be read individually rather than as a group, although I found it hard to stop. Here is the link: http://paulwmanuel.blogspot.com/search/label/A%20%22Reader%27s%20Digest%22%20Approach%20to%20Theology
I first read Paul Manuel’s studies occasionally on a friend’s blog and was drawn not only to the subjects, but especially to the clear, careful writing and reference documentation. A while ago a separate blog site was established for Paul Manuel’s writing, specifically sermons. I promptly forgot that, but have discovered (and bookmarked) the site now. It is well organized, currently listing 24 categories. Check it out. It is a treasure trove.