The following two "series" (as the included resources are tagged in Logos) are clearly a single series, so that the two series need to be combined:
- Library of New Testament Studies (128 titles); and
- The Library of New Testament Studies (36 titles).
A look at the two series in a view that shows the covers of the resources makes clear this is all one big series. Every work in both of these "series" is captioned at the top "Library of New Testament Studies," so that's the Series name under which these two "series" should be combined. I've been collecting these, but was unaware of this odd division of titles, and so although I own none of the second series, I own almost all of the first series. It's as though there are 36 lost sheep.
Also - none of the 36 are included in Library of New Testament Studies | LNTS/JSNTS: 1993–2021 (170 vols.) | Logos Bible Software. I know this because I own this 170 volume collection, and I don't own any of the 36 resources in the second series noted above.