85 complete alphabets lettered in various styles; instructions for spacing, roughs, brushwork.
Here's a sample of other books in this Dover category
Ornamental Calligraphy by George J. Becker A remarkable series of studies, including 23 complete alphabets, in ornate penmanship. Among the lettering styles: Roman print, German text, Old English print and English church text.
The History and Technique of Lettering by Alexander Nesbitt Comprehensive, well-illustrated volume chronicles writing through ages: Roman lettering, runes, medieval hands, Carolingian minuscule, and derivative types, more. 89 complete alphabets, more than 165 additional specimens.