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| Key energy efficiency solutions for SME hotels | Hotel Energy Solutions | 2011 | |
| Key energy efficiency technologies database for SME hotels | Hotel Energy Solutions | 2011 | |
| Front Runners Marketing Guidelines | ENERGIES 2050, Stéphane POUFFARY and Philippine WATERKEYN | 2015 | |
| Practical guide for pilot hotel owners | Sustainable Innovation AB, Nigel Claridge | 2016 | |
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| Sustainable tourism for development Guidebook | World Tourism Organization (UNWTO) | 2013 | |
| Keep It Real - Market and communicate your green credentials | Dr Xavier Font and Laura Higa, Leeds Beckett University | 2015 |