Here's a post on the MP blog about searching by author-
From My Library you can initiate a search in all of the books by a particular author.
Right click on an Author’s name like Chambers. Select Search All These Resources. When the search dialog opens enter your search query and click Search.
In the past, this was not very effective because Logos had authors listed in all kinds of different ways. For example, one of my favorites, R. C. Sproul, was listed as: Sproul, RC; Sproul, R. C.; Sproul, R.C.; Sproul, Robert Charles; and so on.
I've recently noticed that for Dr. Sproul, they've cleaned this up quite a bit. Does anyone know if they've done this across the board?
And related- when I search by 'Sproul', I also get my Tabletalk magazines (of which he is editor). These magazines are listed under 'Ligonier Ministries' as author. How does Logos know to associate them with 'Sproul'? Are there metatags that are being searched, or some other method of identifying authors related to journals?