A note on the copyright page reads: "This volume contains the Galaxy Express 999 manga stories originally published in Animerica issues Vol. 5, No. 9 through Vol. 6, No. 5 in their entirety."
Welcome to the first-ever publication in English...
Indexer Notes
Essay on Leiji Matsumoto and his creations, plus 3 pages explaining the characters in the book (since they had previously appeared in manga that have not been translated into English).