This issue follows the same format as the previous ones, but focuses on architectural periodicals, which are seldom covered by retailers of rare books, and therefore offers an indispensable bibliographical tool for exploring this relatively unknown area of publishing. Around 100 different titles are available either as single issues or in year sets, or even in complete sets. The listing is preceded by an in-depth commentary with notes on the history, orientation, status and graphics of each of the periodicals available; a breakdown is supplied for each title detailing its frequency, term of publication, format, and coverage.