Abstract: The technological solutions in culture and arts increase accessibility of cultural goods and intensity of cultural environment. QR-technologies designed by Denso Wave Incorporated have become digitalization component increasingly popular in library and information services. The mobile access points call for new ways of library and information services. The concept, characteristics and advantages of QR technology are examined; options for QR code application in libraries are suggested. As the majority of library users owns mobile phones, QR technologies provide unique opportunities. MTS (Mobile Telecommunications System) was the first company to initiate the project of using mobile phones to expand library information space: QR-code linking to books were placed in the city public places. Library applications for QR-codes are outlined, e. g. library information advertisement, user services, social events to promote reading, monitoring in the pandemic situation, etc. The opportunities and prospects for this resource are investigated by the examples of RNPLS&T, Belgorod State Universal Scientific Library, V. G. Korolenko Public Scientific Library (Glazov, Udmurt Republic), Centralized Library System (Georgievsk, Stavropol Territory). The author also suggests that QR codes may solve the problem of access to full and reliable information.