This is the 16450th most frequent Russian word.
русскоговорящим
Russian-speaking.
Here, 'русскоговорящим' serves as an adjective describing individuals who speak Russian, playing the role of a descriptor for tourists.
Я помог русскоговорящим туристам найти нужный адрес.
I helped Russian-speaking tourists find the required address.
In this sentence, 'русскоговорящим' is used as an attributive descriptor, indicating the target audience of the book.
Книга предназначена русскоговорящим читателям.
The book is intended for Russian-speaking readers.
Here, 'русскоговорящих' modifies 'детям', specifying the subset of children who are Russian speakers.