There's nothing I can say about Coltrane's Giant Steps (1959 - 75 minutes) that hasn't been said better by others. But the idea of this series was that it's about stuff I'm playing that I'm also confident should belong in a jazz collection of excellence, and Giant Steps is on my machine right now and certainly so belongs. Here's the Allmusic review, and here's the entry in Wikipedia. From Cook and Morton:
Trane's first genuinely iconic record, with no fewer than seven original compositions, most of them now squarely established in the repertory.Part of the title track, with animation by Michal Levy.
[Links to the rest of the series.]