What is the status of the Montessori Bibliography Online?

Periodically – typically weekly – an audit of the Bibliography dataset is conducted. The audit focuses on the following five areas.

Type of entry refers to the type of material – journal article, book, book section, and so on.

Language of content refers to the language(s) which the referenced document is written. In some cases a document may include content of one or more languages.

Year of publication is pretty self-evident, this refers to the year in which the document was published. In some cases the publication year is undated (n.d.), or expressed as a date range (e.g., 1990–1995).

Available or unavailable in digital form refers to whether the document is accessible digitally from a reputable and reliable source. This includes content that is freely available as well as content available behind a paywall.

Finally, tagged or untagged refers to whether the entry has been assigned subjects (i.e., subject cataloging). This cataloging is generally conducted as new entries are added.

If you are interested in collaborating on the subject cataloging of entries in the Bibliography, please contact me via email. Please include a brief introduction of yourself and your experience with cataloging bibliographic content or metadata management.

As of June 11, 2024 – 45,240 unique entries

Type of entry

Type Quantity Percent
Books 3,654 8.08 %
Book sections 2,884 6.37 %
Journal or magazine articles
   – Peer Reviewed (more info)
75.94 %
Manuscript of archival collections 430 0.95 %
Newspaper articles 1,935 4.28 %
Theses or dissertations 1,404 3.10 %
Other 576 1.27 %
“Other” is a combination of entry types which individually make up less than 0.5% of the entire dataset. These types include: audio recordings, blog posts, conference papers, datasets, dictionary entries, documents, encyclopedia articles, interviews, patents, presentations, reports, video recordings, and web pages.

Language of content

Language Quantity Percent
Dutch 3,332 7.37 %
English 28,279 62.51 %
French 585 1.29 %
German 2,900 6.41 %
Hungarian 298 0.66 %
Italian 6,361 14.06 %
Japanese 890 1.97 %
Korean 352 0.78 %
Spanish 568 1.26 %
Swedish 234 0.52 %
Other 1,549 3.42 %
“Other” is a combination of languages which individually make up less than 0.5% of the entire dataset. Some of the entries include content in more than one language.

Year of publication


Available / unavailable online


Tagged or untagged