Some of you may have heard of the website called Internet Archive. I have searched through that website gathering the links of texts I feel contain valuable sources. I have tried to avoid simple text books in favour of those containing facsimiles. Please do not dismiss these books after a brief look as they do contain a large amount of very useful information and pictures. Some of the books are rather long and time consuming to search through so do not expect to be able to browse them at one sitting. The length of some of the books means that they take a long time to load, to make the process easier I suggest downloading those you wish to read on to your computer as PDF format (or a format that suits you best) and then reading/browsing them off-line. When you click on the links below and go to the corresponding web page you will see to the left a panel of document formats, I suggest right clicking where it says PDF and selecting "Save Link As..." (for Firefox) or "Save Target As..." (for Internet Explorer). As I have already said please do not dismiss them as many of them do contain valuable resources, trust me you will be impressed
Handwriting I have omitted Palmer's Penmanship Budget as that can be found elsewhere for example at IAMPETH.
Public school penmanship; a handbook for teachers (1909) http://www.archive.org/details/publicschoolpenm00clarrich
The Payson, Dunton, & Scribner manual of penmanship (1873) http://www.archive.org/details/paysonduntonscri00paysrich
The theory and practice of handwriting; a practical manual for the guidance of school boards, teachers, and students of the art, with diagrams and illustrations (1894) http://www.archive.org/details/theorypracticeof00jackrich
Lettering/Calligraphy
Letters & lettering; a treatise with 200 examples (1902) http://www.archive.org/details/lettersletteringa00brow & http://www.archive.org/details/letterslettering00browuoft
Lettering (c1916) http://www.archive.org/details/lettering00stev
Lettering for commercial purposes (1918) http://www.archive.org/details/letteringforcomm00gordrich
Writing & illuminating, & lettering (1917) http://www.archive.org/details/writingilluminat00johnuoft & http://www.archive.org/details/writingilluminat00johnrich
Lettering in ornament, an inquiry into the decorative use of lettering, past, present, and possible (1914) http://www.archive.org/details/letteringinornam00dayluoft & http://www.archive.org/details/letteringinornam00daylrich
Student's alphabets (c1907) http://www.archive.org/details/studentsalphabet00keufrich
The book of ornamental alphabets, ancient and mediaeval, from the eighth century... (1914) http://www.archive.org/details/bookofornamental00delarich
The hand book of mediaeval alphabets and devices (1856) http://www.archive.org/details/handbookofmedia00shawuoft & http://www.archive.org/details/handbookofmediae00shawrich
Penmanship of the XVI, XVII & XVIIIth centuries : a series of typical examples from English and foreign writing books http://www.archive.org/details/penmanshipofthe00dayluoft & http://www.archive.org/details/penmanshipofxvix00dayluoft
Alphabets old and new, for the use of craftsmen : with an introductory essay on Art in the alphabet (1898) http://www.archive.org/details/alphabetsoldnewf00dayluoft
Monograms & ciphers (1906) http://www.archive.org/details/monogramsciphers00turbuoft
Illumination specifically (some of these are quite dry and long)
Illumination and its development in the present day (1922?) http://www.archive.org/details/illuminationitsd00farn
A primer of the art of illumination for the use of beginners... (1874) http://www.archive.org/details/primerofartofill00delauoft
A handbook of the art of illumination as practised during the middle ages. With a description of the metals, pigments, and processes employed by the artists at different periods (1866) http://www.archive.org/details/handbookofartofi00shawrich
English illuminated manuscripts (1895) http://www.archive.org/details/englishilluminat00thomuoft
Illuminated manuscripts (1911) http://www.archive.org/details/illuminatedmanus00herbrich
Illuminated manuscripts in classical and mediaeval times, their art and their technique (1892) http://www.archive.org/details/illuminatedmanus00midduoft
Illuminated manuscripts and bindings of manuscripts exhibited in the Grenville Library (1923) http://www.archive.org/details/illuminatedmanus00brituoft
The art of illuminating as practised in Europe from the earliest times ([1866?]) http://www.archive.org/details/artofilluminatin00tymmrich
Catalogue of an exhibition of illuminated and painted manuscripts, together with a few early printed books with illuminations--also some examples of Persian manuscripts--with plates in facsimile and an introductory essay (1892) http://www.archive.org/details/catalogilluminat00grolrich
Facsimiles of choice examples selected from illuminated manuscripts, unpublished drawings and illustrated books of early date (Quaritch) http://www.archive.org/details/facsimilesofchoi00quarrich
Illuminated manuscripts. ... With twenty-one illustrations (1920) http://www.archive.org/details/illuminatedmanus00bradrich
Illustrations of the Book of Genesis; being a complete reproduction in facsimile of the manuscript British Museum, Egerton 1894 (1921) http://www.archive.org/details/illustrationsofb00roxbrich
A practical treatise on the art of illuminating : with examples, chromographed in fac-simile and in outline, of the styles prevailing at different periods, from the sixth century to the present time ([1873]) http://www.archive.org/details/practicaltreatis00wardiala
Reproductions from illuminated manuscripts. Fifty plates from mss. in the R. Medicean Laurentian library with preface and illustrative notes by Dr. Guido Biagi (1914) http://www.archive.org/details/reproductionsfro00biblrich
Plain free-hand lettering
A text-book on plain lettering (1901) http://www.archive.org/details/textbookonplainl00jacorich
Lettering for draftsmen, engineers and students; a practical system of freehand lettering for working drawings (1911) http://www.archive.org/details/letteringfordraf00reinrich & http://www.archive.org/details/fordraflettering00reinrich & http://www.archive.org/details/draftletteringfo00reinrich
A text-book of free-hand lettering (1909 [c1907]) http://www.archive.org/details/textbookoffreeha00daniiala & http://www.archive.org/details/textbookoffreeha00danirich
Free-hand lettering. Being a treatise on plain lettering from the practical standpoint for use in engineering schools and colleges (1905 [c1903]) http://www.archive.org/details/freehandletterin00wilsiala & http://www.archive.org/details/freehandletterin00wilsrich
[Lettering set, issued by the] Department of Commerce, Coast and Geodetic Survey, Washington (19--]) http://www.archive.org/details/letteringsetissu00uscorich
The theory and practice of lettering, designed for the use of engineers and draftsmen generally, but especially for the use of students in engineering (1904) http://www.archive.org/details/theorypracticeof00sherrich