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 second of the three handbooks and features a complete technical examination of all Zeon mobile suit and mobile armor variations, plus a chapter on the military officers' register that introduces major Zeon ace pilots, including Char Aznable and the Black Trinity. About one-third of the book is printed in color, with the rest in black and white.