CEM: Certified Energy Manager

• Guide to Energy Management, 8th ed. - Barney L. Capehart, Wayne C. Turner and William J. Kennedy
• Solutions Manual for Guide to Energy Management, 8th ed. - Klaus-Dieter E. Pawlik
• Handbook of Energy Engineering, 8th ed - D. Paul Mehta, Albert Thumann
• Energy Management Handbook, 9th ed. - Stephen a. Roosa
• Guide to Energy Management, 8th ed./ Int'l Version - Barney L. Capehart & William J. Kennedy & Wayne Turner
• Solutions Manual for Guide to Energy Management, 8th ed. / Int'l Version - Klaus-Dieter E. Pawlik
• A 'Light' Guide to Energy Savings in Transport - Conor Molloy, Ireland

CEA: Certified Energy Auditor

• Handbook of Energy Audits, 9th ed. - Albert Thumann, Terry Niehus & William J. Younger
• Commercial Energy Auditing Reference Handbook 3rd ed. - Steve Doty
• Creating a Strategic Energy Reduction Plan - Scott Offermann
• A 'Light' Guide to Energy Savings in Transport - Conor Molloy, Ireland

CBCP: Certified Building Commissioning Professional

• Energy Management Handbook, 9th ed. - Stephen a. Roosa
• Guide to Energy Management, 8th ed. - Barney L. Capehart, Wayne C. Turner and William J. Kennedy
• Handbook of Energy Engineering, 8th ed - Albert Thumann, D. Paul Mehta

BEP: Certified Business Energy Professional

• Green Facilities Handbook – Eric Woodroof
• Maximizing Energy Savings - Minimizing Costs - John Studebaker
• Megatrends for Energy Efficiency & Renewable Energy - Michael Frank Hordeski
• Web Based Enterprise Energy & Building Automation Systems - Barney L. Capehart
• Handbook of Web Based Energy Information & Control Systems- Barney L. Capehart& Timothy Middelkoop, Paul J. Allen & David C. Green
• Manual for Intelligent Energy Services - Shirley J. Hansen
• Energy Management Handbook, 9th ed. - Stephen a. Roosa

CAP: Carbon Auditing Professional

• Hydrogen & Fuel Cells: Advances in Transportation and Power - Michael Frank Hordeski
• Green Facilities Handbook: Simple & Profitable Strategies for Managers - Eric Woodroof
• Alternative Fuels: The Future of Hydrogen - Michael Frank Hordeski
• Small-Scale Cogeneration Handbook, 4th ed. - Bernard F. Kolanowski
• A 'Light' Guide to Energy Savings in Transport - Conor Molloy, Ireland

CSDP: Certified Sustainable Development Professional

• Sustainable Development Handbook - Stephen A Roosa
• Visions for a Sustainable Energy Future - Mark A. Gabriel
• Carbon Reduction Policies, Strategies & Technologies - Stephen A. Roosa and Arun G. Jhaveri
• Marketing Green Buildings: Guide for Engineering, Construction & Architecture - Jerry Yudelson

CPQ: Certified Power Quality Professional

• Efficient Electrical Systems Design Handbook - Albert Thumann and Harry Franz
• Electricity and Electronics Fundamentals - Dale R. Patrick and Stephen W. Fardo
• Electrical Engineering for Non-Electrical Engineers - S. Bobby Rauf

CDSM: Certified Demand Side Manager

• Energy Management Handbook, 9th ed. - Stephen A. Roosa, Steve Doty and Wayne C. Turner
• Guide to Energy Management, 8th ed. - Barney L. Capehart, Wayne C. Turner and William J. Kennedy
• The Smart Grid: Enabling Energy Efficiency & Demand Response - Clark W. Gellings
• Smart Grid Planning and Implementation - Clark W. Gellings

CEP: Certified Energy Procurement Professional

• Lowering Your Facility's Electric Rates - Lindsay Audin
• Maximizing Energy Savings and Minimizing Energy Costs - John M. Studebaker

CLEP: Certified Lighting Efficiency Professional

• Quality Lighting for High Performance Buildings - Michael Stiller
• Lighting Controls Handbook - Craig DiLouie
• Lighting Redesign for Existing Buildings - Craig DiLouie
• Lighting & Controls: Transitioning to the Future - Stan Walerczyk

CMVP: Certified Measurement & Verification Professional

• The Role of the Measurement and Verification Professional Judgment and Decision-making in the Application of M&V - Steve Kromer
• Energy Management Handbook, 9th ed. - Stephen A. Roosa, Steve Doty and Wayne C. Turner
• Electrical Engineering for Non-Electrical Engineers, Third Edition - S. Bobby Rauf

CGD: Certified GeoExchange Designer Program

• Combined Heating, Cooling & Power Handbook: Technologies & Applications, 2nd ed. - Neil Petchers

CIEP: Certified Industrial Energy Professional

• Industrial Energy Systems Handbook - Albert E. Williams
• Industrial Process Control Systems, 2nd ed. - Dale R. Patrick and Stephen W. Fardo
• Practical Lubrication for Industrial Facilities, 3rd ed. - Heinz P. Bloch and Kenneth Bannister

CWEP: Certified Water Efficiency Professional

• Water Quality & Systems: A Guide for Facility Managers, 2nd ed - Robert N. Reid
• Water Poverty: The Next "Oil" Crisis - Shirley J. Hansen

EBCP: Existing Building Commissioning Professional

• Energy Management Handbook, 9th ed. - Stephen A. Roosa, Steve Doty and Wayne C. Turner
• Guide to Energy Management, 8th ed. - Barney L. Capehart, Wayne C. Turner and William J. Kennedy
• Handbook of Energy Engineering, 8th ed - D. Paul Mehta, Albert Thumann

EEP: Energy Efficiency Practitioner

• Commercial Energy Auditing Reference Handbook - Steve Doty
• Guide to Energy Management, 8th ed. - Barney L. Capehart, Wayne C. Turner and William J. Kennedy

REP: Renewable Energy Professional

• Alternate Energy: Assessment & Implementation Reference Book - James J. Winebrake
• Alternative Fuels: The Future of Hydrogen - Michael Frank Hordeski
• Hydrogen & Fuel Cells: Advances in Transportation and Power - Michael Frank Hordeski
• Megatrends for Energy Efficiency and Renewable Energy - Michael Frank Hordeski
• A 'Light' Guide to Energy Savings in Transport - Conor Molloy, Ireland

DGCP: Distributed Generation Certified Professional

• Combined Heating, Cooling & Power Handbook, 2nd ed. - Neil Petchers
• Small-Scale Cogeneration Handbook - Bernard F. Kolanowski

PCF: Performance Contracting and Funding Professional

• Finance and Accounting for Energy Engineers - S. Bobby Rauf
• Performance Contracting: Expanding Horizons - Shirley J. Hansen
• How to Finance Energy Management Projects - Eric A. Woodroof and Albert Thumann

REA: Certified Residential Energy Auditor

• Residential Energy Auditing & Improvement - Stan Harbuck and Donna Harbuck
• Handbook of Energy Audits, 9th ed. - Albert Thumann, Terry Niehus and William J. Younger

CBCFP: Certified Building Commissioning Firm Program

• Energy Management Handbook, 9th ed. - Stephen A. Roosa, Steve Doty and Wayne C. Turner
• Guide to Energy Management, 8th ed. - Barney L. Capehart, Wayne C. Turner and William J. Kennedy
• Handbook of Energy Engineering, 8th ed - D. Paul Mehta, Albert Thumann