The full text of eight CACM papers from the July 1987 Hypertext conference at UNC, published on disk in July 1988, built in HyperTIES. Ben Shneiderman: the world's first electronic journal. ACM sold 4000 copies.

Berners-Lee's Spring 1989 WWW proposal cites that electronic journal as the source of the "hot spots" idea. That is the attested path in The blue link.

Hypertext Hands-On! (Shneiderman and Kearsley, 1988) is the world's first electronic book, from the same lab.