Here’s my own logo design for ITP. It was kind of inspired by the style of Herb Lubalin, whose families and mother & child logos personify one or a few leters.
I think the P is a bit off.
However, out of the logos I saw, my favorite was Michael Peter’s(OBE) Nabarro logo pictured below. He’s been a designer for over 35 years and has received numerous awards and distinctions. Unfortunately, other than this logo, nothing else of his really caught my eye.