Handmade scrolls and texts are absolutely gorgeous to look at. Each page is completely unique because multiple people were copying the same text. We are very lucky to still be able to enjoy this art form. Below you will find links to period manuscripts, instructions for learning to do your own illumination and even some beautiful period artwork that you can buy if you are so inclined (Or just look at it for reference).
Emaki: the illuminated manuscripts of medieval Japan Some great samples as well as links to museums for sources.
Keio University – Japanese Culture Through Rare Books Includes video with the Professor explaining the scrolls.
Calligraphy Skills – Alphabets Descriptions and tutorials
DMMapp – Digitized medieval manuscripts app Links to more than 500 libraries worldwide that all contain medieval manuscripts you can browse for free
Sexy Codicology – A World of Illuminated Manuscripts and Medieval Books Follow them on Facebook too
Gallica – Les Champion des Dames This book also contains the first image of a witch riding a broomstick
The Welcome Library – Digital Medieval and Early Modern Manuscripts Collection This one is huge. Everything from Alchemy – Works on Regimen. Including medical texts I have not seen elsewhere online.
The ancient and valuable collection of the G. Castelnuovo Library 32 works dating from 1482-1687
Manuscripts Online Written works from 1000-1500. Searchable resource
Monastic Manuscript Project Internet Resources for the Study of Early Medieval Monasticism
Boston Public Library Collections of Distinction
University of Pennsylvania Schoenberg Collection Youtube channel introducing the manuscripts