Tags: Manga.
OL Shinkaron (OL進化論 Ōeru Shinkaron) is a yonkoma manga series by Akizuki Risu about OLs or office ladies. It also had a short spin-off series titled Okusama Shinkaron that focused on housewives. Several volumes of OL Shinkaron have been published by Kodansha in a Japanese/English bilingual edition titled Survival in the Office: The Evolution of Japanese Working Women.