What books to read in learning and development?

Recently, on a whim I asked the following question on Twitter:
What book has had the greatest impact on your career in learning?

Despite it being Friday afternoon, in a few minutes the responses below came through – I have also given the Twitter handle of the recommender.

Do you agree? What else would you like to see on this list? If you would like to make a recommendation, please could you include your reason for nominating the book:

• Analyzing Performance Problems, Robert Mager -Jay Cross (@jaycross)
• As If, Saler – Janet Laane Effron ‏(@janet_frg)
• Back of The Napkin, Dan Roam – Sam Taylor ‏(@samt_el)
• Being Digital, Nicholas Negroponte – Nigel Paine‏ (@ebase)
• Beyond ELearning, Marc Rosenberg, Kate Graham (‏@kategraham23)
• Complications, Atul Gawande -Jane Bozarth ‏(@JaneBozarth)
• Conditions of Learning, Robert Gagne – Nigel Paine‏ (@ebase)
• Designing Successful e-Learning: Forget What You Know About
• Istructional Design and Do Something Interesting, Michael W. Allen Michael – Louise Baynes ‏(@Louise1979)
• Disrupting Class ,Christensen, Horn and Johnson- micheldiaz (@micheldiaz)
• Electronic Performance Support (1991), Gloria Gery – Charles Jennings (@charlesjennings)
• Emergence: The Connected Lives of Ants, Brains, Cities, and Software, Steven Johnson – Jay Cross (@jaycross)
• Facilitating Live Online Learning, Colin Steed – Amanda Randall-Gavin (‏@MandyRG)
• How People Learn: Brain, Mind, Experience, and School, Bransford et al – Britt Watwood‏ (@bwatwood)
• Human Competence, Tom Gilbert – Dave Ferguson (@Dave_Ferguson)
• Improving Performance: How to Manage the White Space in the Organization, Geary Rummler and Alan Brache  – Dave Ferguson (@Dave_Ferguson)
• Informal Learning: Rediscovering the Natural Pathways That Inspire Innovation and Performance, Jay Cross – Harold Jarche (@hjarche)
• Make To Stick, Chip & Dan Heath – Sam Taylor ‏(@samt_el)
• Management, Peter Drucker -Jay Cross (@jaycross)
  Maverick, Ricardo Semler – Henry Stewart (‏@happyhenry)
• Narrative as Virtual Reality, ML Ryan – Janet Laane Effron (‏@janet_frg)
• Presentation Zen, Garr Reynolds – Colin Steed (‏@ColinSteed)
• Rapport Sur Vital De L’instruction Publique Dans Quelques Pays De L’allemagne Et Particulièrement En Prusse, Victor Cousin – Charles Jennings (@charlesjennings)
• A New Learning Culture, Doug Thomas – Charles Jennings (@charlesjennings)
• Teaching Hard, Teaching Soft, Colin Corder – Andy Parker‏ (@aparker60)
• Teaching Training Learning Practical-Guide, Reece and Walker – Tony Burnett
• Tell Me a Story,Roger Schank -Jay Cross (@jaycross)
• The Adult Learner, Malcolm Knowles -Jay Cross (@jaycross)
  The Blended Learning Cookbook, Clive Shepherd – Craig Taylor (‏@CraigTaylor74)
• The Cambridge Handbook of Multimedia Learning, Richard Mayer – Rachel Kubel (@rachelmiriam)
• The Cluetrain Manifesto, Doc Searles, David Weinberger, et alia – Jay Cross (@jaycross)
• The Educated Mind: How Cognitive Tools Shape Our Understanding, Kieran Egan – Harold Jarche (@hjarche)
• The Knowledge Making Company ,Nonaka & Takeuchi – Awooler ‏(@awooler)
• The New Learning Architect ,Clive Shepherd – Damian Farrell‏ (@Dames20), Andrew Taylor‏ (ajtlearn)
• The Wealth of Networks: How Social Production Transforms Markets and Freedom,Yochai Benkler – Harold Jarche (@hjarche)
• What Every Manager Should Know about Training, Robert Mager – Dave Ferguson (@Dave_Ferguson)
• Working Smarter Field Book , @jaycross & friends – mark britz (‏@britz), Sam Taylor ‏(@samt_el)
• Zen and the Art of Motorcycle Maintenance, Jack Mezirow, R Clark and S Brookfield – Candice Kramer (‏@CandiceCPLP)