| title | creator | language | description | tableOfContents | contributor | subject | created |
| Initials Only | Green, Anna Katharine, 1846-1935 | en | | | | Fiction; Detective and mystery stories | 1999-08-01 |
| Initial Studies in American Letters | Beers, Henry A. (Henry Augustin), 1847-1926 | en | | | | | 2005-05-18 |
| The Book of Ornamental Alphabets, Ancient and Medieval, from the Eighth Century
With Numerals, including Gothic; Church Text, Large and
Small; German Arabesque; Initials for Illumination,
Monograms, Crosses, &c. | Delamotte, F. (Freeman), 1814-1862 | en | | | | Alphabets; Decoration and ornament | 2007-11-11 |
| One Thousand and One Initial Letters | Jones, Owen, 1809-1874 | en | | | | Initials; Alphabets; Decoration and ornament -- Victorian style; Illumination of books and manuscripts | 2007-08-29 |