If you're looking for more information about Rika Nishimura or details about the photo book, I recommend checking:
: This title is frequently cited in collector circles as part of the "Junior A" series, often featuring a blend of idol photography alongside musical themes or performances. Key Career Milestones Rika Nishimura Photo Book Music Alone Junior A
(西村理香), often associated with photographer Yasushi Rikitake, was a prominent figure in the late 1980s and early 1990s Japanese idol and gravure scene. Her career spanned several titles, including work under the "Junior A" label, which was a specific series or branding used for junior idols of that era. Overview of "Music Alone" Review — Rika Nishimura Photo Book: Music Alone