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2013
2022
2012
In Search of Freshwater
2025
2024
2025
2021
Firefly
2025
2020
Adventures in Reaching the Summit
2003
A Field Guide to Wonder and Loss
2026
2015
2021
A Deep Time Journey
2019
2016
2017
Two Journeys in Unquiet Places
2020
A Journey on Foot
2012
2019
2007
2020