- Naumov, N. (2025). Shakespeare Tourism. In R. Baleiro, G. Capecchi, G. & J. Arcos-Pumarola (Eds.) E-Dictionary of Literary Tourism. University for Foreigners of Perugia. https://doi.org/10.34623/zdg2-hn59
- Naumov, N. (2024). Cultural Tourism. In Ratten, V. (Ed.) International Encyclopedia of Business Management. London: Elsevier. https://doi.org/10.1016/B978-0-443-13701-3.00570-3
- Naumov, N. & Varadzhakova, D. (2024) Camping Tourism. In Ratten, V. (Ed.) International Encyclopedia of Business Management. London: Elsevier. https://doi.org/10.1016/B978-0-443-13701-3.00239-5
- Naumov, N. & Pillmayer, M. (2024). Talent Management in Tourism & Hospitality. In Ratten, V. (Ed.) International Encyclopedia of Business Management. London: Elsevier. https://doi.org/10.1016/b978-0-443-13701-3.00037-2
- Pillmayer, M. & Naumov, N. (2024). Open Innovation. In Ratten, V. (Ed.) International Encyclopedia of Business Management. London: Elsevier. (https://doi.org/10.1016/b978-0-443-13701-3.00251-6
- Naumov, N. & Lovell, A. (2024). Sustainable Tourism. In Ratten, V. (Ed.) International Encyclopedia of Business Management. London: Elsevier. https://doi.org/10.1016/b978-0-443-13701-3.00238-3
- Naumov, N. & Nair, B. (2024). Food Tourism. In Ratten, V. (Ed.). International Encyclopedia of Business Management. London: Elsevier. https://doi.org/10.1016/b978-0-443-13701-3.00237-1
- Naumov, N. (2024). Mass Tourism. In: Jafari, J., Xiao, H. (Eds). Encyclopedia of Tourism (pp.659-661). Springer, Cham. https://doi.org/10.1007/978-3-319-01669-6_378-2.
- Naumov, N., (2022). Cultural Impacts. In Buhalis, D., (Ed.), Encyclopedia of Tourism Management and Marketing (pp.710-712). Edward Elgar Publishing, Cheltenham.
- Naumov, N., (2022). Identity. In Buhalis, D., (Ed.), Encyclopedia of Tourism Management and Marketing. (pp.636-638). Edward Elgar Publishing, Cheltenham.
- Naumov, N., (2022). Mass Tourism. In Buhalis, D., (Ed.), Encyclopedia of Tourism Management and Marketing (pp.148-150). Edward Elgar Publishing, Cheltenham.
- Naumov, N. (2017) Bulgaria. In Dwary, L. (Ed.) The SAGE International Encyclopedia of Travel & Tourism (pp.181-182). New York: SAGE.
- Naumov, N. (2017) Burgas. In Dwary, L. (Ed.) The SAGE International Encyclopedia of Travel & Tourism (p.183-183). New York: SAGE.
- Naumov, N. & Green, D. (2015) Mass tourism. In Jafari, J. & Xiao, H. (Eds.) Encyclopedia of Tourism. Cham: Springer, https://doi.org/10.1007/978-3-319-01384-8_378