It is said that Kim Il Sung and Kim Jong Il characters are written in bold in all North Korean publications.

“Jongilbong Jongilbong Our Pride Jongilbong” Here is Jongilbong (a mountain that rises behind Paektusan, a birthplace of Kim Jong Il, and was named in 1985 as part of the deification of Kim Jong Il. The characters in parentheses are bold. Writing bold letters for Kim Il Sung and Kim Jong Il is not limited to textbooks, and the letters” Kin Il Sung / Kim Jong Il ” are bold in all publications such as newspapers and magazines, and Kim Il Sung and Kim Jong Il’s “words” (teaching) are also written in bold.
(Toshio Miyazuka and Sumiko Miyazuka, “A North Korean Textbook of Startle”)

North Korea’s publications are scoped.

Many of Kim Il Sung’s books, especially Kim Jong Il’s books, advertise obviously radical, nationalistic, and extrinsic ideas, calling for the “Liberation of South Korean compatriots.” These claims are also found in countless publications coming into bookstores and libraries. On the cover, you can see letters such as “for domestic use,” “only inside the party,” and “only inside the military.” (Alexander Zhebin, The Kim Dynasty I See)

For explanations about newspapers, see Zhebin’s explanation below.

There are no signs or sellers in the dirty glass window newspaper counter. Narrow shelves around a hut less than one square meter are also empty. The only thing that turns out to be a newspaper stall is the two or thirty minutes needed to sell out dozens of copies of the “Labor Newspaper” and the “Pyongyang Newspaper”. The only periodicals sold on the streets in North Korea are these two, and Pyongyang alone.
As of 1989, North Korea had 16 newspapers and 3 million copies. There are about 60 magazines. Newspapers and magazines can be read by subscription, but subscriptions are restricted to one household and one periodical-newspapers or magazines-by the directive of Kim Il Sung, which also gives the head of the household the rights of other family members. Unless otherwise, you are entitled to a subscription that takes into account the occupation of the householder. For example, if your husband is an engineer and your wife is an actress, then neither are allowed to subscribe to your favorite newspapers and magazines.
Either one has to go to the library. Subscription periodicals and mail are delivered to the address, which includes the name of the city, area, and house, and the number of the People’s Group where the family’s address is registered. All mail is delivered to the head of the People’s Group, who checks the mail at each home.
The number of periodicals is limited and not everyone can subscribe to the newspapers they want. The most popular is the Pyongyang Newspaper, the only place where radio and television programs are posted, but the number of copies is limited and only Pyongyang citizens can subscribe.
Labor newspapers can also be read on Pyongyang’s street wall newspapers, but there are no more than a dozen in the city. There are also train stations and central post offices in the city, but pages with international information are always posted and forgotten. Outside of Pyongyang, there are no newspaper stands or even wall newspapers. Foreign periodicals are only found in Pyongyang in the People’s University and a few other government agencies. (Ibid.)

The following is a quotation from Exiles from North Korea, which collects testimony from 60 defectors. Eo Sung Il, a technologist at the National Institute of Natural Science and Technology from Pyongyang, has testified that there are “reference newspapers” that can only be read by senior party officials.

Party senior officials have a special information magazine called the reference newspaper. A friend in Pyongyang brought one of these information magazines to show me. There, Chinese leader, Xiaoping, is written without a title. In the Labor Newspaper, it was always called “comrade”. (Asahi Newspaper Aera editorial department, “Exiles from North Korea”)