In the article is discribed the first experience of preparing the album directory signs European bibliophiles books kept in the fund Scientific Library of Odessa National University named after I. I. Mechnikov. The scheme of description of bookmarks, developed according to the experience of predecessors, is outlined. The data on bibliophiles and the quantitative composition (statistics) of their bookmarks are given. The main problems with which the researcher of book marks encounters is considered. The album-catalog «Book Marks European bibliophiles collections in the University Library» was published to the 200th anniversary of the Scientific Library of Odessa National University named after I. I. Mechnikov. The book contains information about several dozen well-known and little-known bibliophiles and their book marks. First introduced images and descriptions 137 book marks 77 bibliophiles, books are available in the collections of the University Library. Among them, book marks crowned persons, public figures and politicians, representatives of the scientific elite (mathematicians, astronomers and physicists, slavist, historians and lawyers) and others. The main problem encountered by a book mark researcher is the limited access to many electronic databases that facilitate the identification and study of bookmarks.Studying copies of a university library with proprietary features remains relevant in the future. Research Book Marks involves identifying housing proveniyentsiy, careful reading marґinaliy and their attribution, introducing scientific use sources that reveal the history of the formation and movement of parts bibliophilic collection, systematization of data and in the future – the creation and constant updating electronic database of book collections, dispersed in funds. 

У статті розглянуто досвід підготовки альбому-каталогу книжкових знаків європейських бібліофілів, що зберігаються у фонді Наукової бібліотеки Одеського національного університету імені І. І. Мечникова. Окреслено основні проблеми, з якими зустрічається дослідник книжкових знаків. 

В статье рассмотрен опыт подготовки альбома-каталога книжных знаков европейских библиофилов, которые хранятся в фонде Научной библиотеки Одесского национального университета имени И. И. Мечникова. Названы основные проблемы, с которыми встречается исследователь книжных знаков.