The publications listed below provide useful information, frameworks and techniques

• Business Analysis, by Debra Paul and Donald Yeates (eds.) (British Computer Society)
  (ISBN 1902505700)
• Exploring Corporate Strategy, by Gerry Johnson and Kevan Scholes (Prentice Hall)
  (ISBN 0130807397)
• The Trusted Advisor, by David Maister , Charles Green and Robert Galford (The Free Press)
  (ISBN 0743207769)
• The Top Consultant, by Calvert Markham (Kogan Page)
  (ISBN 0749442530)
• The Flawless Consulting Fieldbook and Companion: A Guide to Understanding Your Expertise, by Block and Markowitz (Jossey Bass Wiley)
  (ISBN 0787948047)
• Management Consultancy: A Handbook for Best Practice, Second Edition, by Philip Sadler (Ed.) (Kogan Page)
  (ISBN 0749436530)