The classic three-part "Mobile Suit Variations" handbooks that were originally published back in 1984 have been republished by Kodansha to commemorate the 25th anniversary of publication Comic Bon Bon! This is the first of the three handbooks and features a complete technical examination of all Zaku mobile suit variations including Zeong, plus a mobile suit technical manual chapter for Zaku pilots' reference. About one-third of the book is printed in color, with the rest in black and white.