This article aims to determine and assess the usage of spelling in conks, which are indespensable sources for folk literature and folklore, with regard to classical texts, that are thought to be written in standard ortography. The literary works in standard ortographies have less mistakes in spelling. It is a fact that the probability for a conk to have more spellling mistakes is higher than a classical text. Nonetheless it is also a mistake to consider conks as some kind of drafts. It is impossible to claim that all conks are full of spelling mistakes. The percentage of mistakes from a conk to another changes considerably. Some conks aren't so different from mecmuas in regard to standard spelling. Moreover some conks were written so beautifully and correctly that they are kept in museums. In fact it is easier to read a conk than reading a mecmua. The difficulties about reading a conk originates from the differences in the standard ortography as well. It is certain that the education that a scribe had on spelling reflects on the spelling of the text. The determination of the standard mistakes will be useful at reading that text.