The ten main cloud genera in the WMO classification. Presented in editorial order. Photograph credits: 1. File:CirrusField-color.jpg; PiccoloNamek; CC BY-SA 3.0; http://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File:CirrusField-color.jpg; Full photograph fitted within vertical composition; same photo blurred behind it. 2. File:Cirrocumulus_20040830.jpg; LivingShadow (German Wikipedia); CC BY-SA 3.0; http://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File:Cirrocumulus_20040830.jpg; Full photograph fitted within vertical composition; same photo blurred behind it. 3. File:Cirrostratus_with_mock_sun.jpg; The Great Cloudwatcher; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File:Cirrostratus_with_mock_sun.jpg; Full photograph fitted within vertical composition; same photo blurred behind it. 4. File:Altocumulus.jpg; Bidgee; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File:Altocumulus.jpg; Full photograph fitted within vertical composition; same photo blurred behind it. 5. File:2020-12-31_16_06_58_Altostratus_with_a_wavy_undulating_base_above_the_Dulles_section_of_Sterling,_Loudoun_County,_Virginia.jpg; Famartin; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:2020-12-31_16_06_58_Altostratus_with_a_wavy_undulating_base_above_the_Dulles_section_of_Sterling,_Loudoun_County,_Virginia.jpg; Full photograph fitted within vertical composition; same photo blurred behind it. 6. File:Ns1.jpg; Simon / LivingShadow; CC BY-SA 3.0; http://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File:Ns1.jpg; Full photograph fitted within vertical composition; same photo blurred behind it. 7. File:Above_the_Clouds.jpg; Arun Kulshreshtha; CC BY 3.0 us; https://creativecommons.org/licenses/by/3.0/us/deed.en; https://commons.wikimedia.org/wiki/File:Above_the_Clouds.jpg; Full photograph fitted within vertical composition; same photo blurred behind it. 8. File:Stratus_clouds_Vodno_4.jpg; kallerna; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Stratus_clouds_Vodno_4.jpg; Full photograph fitted within vertical composition; same photo blurred behind it. 9. File:GoldenMedows.jpg; PiccoloNamek; CC BY-SA 3.0; http://creativecommons.org/licenses/by-sa/3.0/; https://commons.wikimedia.org/wiki/File:GoldenMedows.jpg; Full photograph fitted within vertical composition; same photo blurred behind it. 10. File:Cumulonimbus_incus_over_Warsaw,_Poland.jpg; Kamil Nowacki; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Cumulonimbus_incus_over_Warsaw,_Poland.jpg; Full photograph fitted within vertical composition; same photo blurred behind it.