It was first titled "Sao Kessakushu" (the masterpieces of Shakespeare) until the 23rd book, followed by "Sao zenshu" (the complete works of Shakespeare) after the 24th book, then the entire book's titles including the first books were changed to "Sao Zenshu" thereafter.
当初第23編迄は「沙翁傑作集」と称し、第24編より「沙翁全集」と改称、以後最初の分も「沙翁全集」と改称。