http://www.type-library.com has an extensive list of books
Title: Detail in Typography (Paperback)
Author: Jost Hochuli (Author)
Title: ISBN: 9780907259343
Title: Adrian Frutiger - Typefaces: The Complete Works
Authors: Heidrun Osterer, Philipp Stamm, Swiss Foundation Type and Typography
Title: ISBN: 9783764385811
Title: Printing Types: Their History, Forms, and Use: A Study in Survivals (with ILLUSTRATIONS)
Author: D. B Updike, Daniel Berkeley (Authors)
Title: Creative Characters Format: Flexibound
Author: Jan Middendorp (Editor)
Title: ISBN: 9789063692247
Title: Now Read This: The Microsoft Cleartype collection
Author: John D. Berry (Author)
Title: The Stroke: Theory of Writing (Paperback)
Author: Gerrit Noordzij (Author)
Title: ISBN: 9780907259305
Title: Shaping Text: Type, Typography and the Reader
Author: Jan Middendorp (Author)
Title: ISBN: 9063692234
Title: Thinking with Type: A Critical Guide for Designers, Writers, Editors, & Students (Design Briefs)
Author: Ellen Lupton (Author)
Title: ISBN: 9781568984483
Title: LETTERS OF CREDIT: A view of type design
Author: Tracy, Walter (Author)
Title: ISBN: 0879236361 / 0-87923-636-1
Title: The Elements Of Typographic Style: Version 3.1
Author: Bringhurst, Robert (Author)
Title: ISBN: 0881792063 / 0-88179-206-3
Title: Type: The Secret History of Letters
Author: Simon Loxley (Author)
Title: ISBN: 1845110285
Title: Type Designs
Author: AF Johnson (Author)
Title: Typography: Macro & Microaesthetics
Author: Willy Kunz (Author)
Title: ISBN: 3721203488
Title: Fonts and encodings
Author: Yannis Haralambous (Author), P Scott Horne (Translator)
Title: ISBN-10: 0596102429 | ISBN-13: 978-0596102425
Title: The Unicode Standard, Version 7.0.0
Author: The Unicode Consortium (Author)
ISBN: 978-1-936213-09-2