Two Diseases in Esperanto

Two Diseases in Esperanto () is a book written by and edited by , published in Sweden in 1954. It deals with the so-called "kia"‑ism and "tiom‑kiom"‑ism in Esperanto. DeHoog recommended following the examples of the language's creator, L. L. Zamenhof, concerning Esperanto correlatives.
Rules.
"Kia"‑ism.
The author argues:
"Tiom‑kiom"‑ism.
Here, the author states:
Criticism.
In contrast to the reviews above, criticized the reasoning of the work in a satirical article. He also suggests that de Hoog is not truly concerned with whether the language is Zamenhof's or not, but is only dissatisfied with comparisons using "kia" and "kiom".
Another criticism came from :