This group represents a set of 17 chemical elements, as listed in the periodic table, from lanthanum (La) to lutetium (Lu), including 15 lanthanides and scandium (Sc) and yttrium (Y) with a tendency to occur in the same core deposits as lanthanides and exhibiting identical chemical properties [25]. In the crystal structure, REEs are most often found in the trivalent state (RE\({}^{3+}\)), although the divalent state (RE\({}^{2+}\)) is also possible. REEs with strong inter-electron interactions with their localized 3d and 4f electrons as well as strong coupling with magnetic materials have emerged as outstanding material dopants [26]. REEs based on neodymium (Nd), dysprosium (Dy), and samarium (Sm), due to their relatively large number of unpaired electrons in the atomic structure, possess a high remanent magnetization and coercivity value determining the stability of the remanent state. The orbital electron structure of these elements contains many unpaired electrons, which allows them to store large amounts of magnetic energy. The total magnetic moment originates from these unpaired electrons [27; 28]. The reviewed literature revealed the growing interest in rare-earth-based materials as materials for EMI shielding applications [29; 30]. These materials can be classified into several groups: RE-doped ferrites (RE-Fs), F\({}_{2}\)O\({}_{3}\)/Fe\({}_{3}\)O\({}_{4}\), RE-transition metal intermetallics (RETMIs), RE oxides (REOs), RE-based alloys, RE spinels, RE-doped MoS\({}_{2}\), and RE polymers. The above-mentioned groups of rare-earth-based materials will be discussed in detail throughout this manuscript. The main advantages of rare-earth-based materials over traditional EMI shielding materials are the magneto-dielectric effects and tunable dielectric properties in an electric or magnetic field. These properties make them attractive for exploring their EMI shielding applications. New nanocomposite-based foams and heterogeneous layered structures have shown outstanding EMI shielding properties. Namely, thermoplastic polyether-block-amide elastomer beads coated with Ti\({}_{3}\)C\({}_{2}\)T\({}_{x}\) showed an EMI shielding efficiency of 44 dB at 8.5-12.5 GHz [29], microcellular aramid nanofiber/Ti\({}_{3}\)C\({}_{2}\)T\({}_{x}\) MXene foams reached a value of 64.9 dB [30], and foams based on the conductive polymer polypyrrole with Fe\({}_{3}\)O\({}_{4}\) achieved a value of 41.1 dB [31]. Combining MXenes with carbon nanotubes and silver nanowires in a layer-by-layer architecture, [PERSON] et al. achieved an EMI shielding efficiency of 53.1 dB in the X-band [32]. The development, classification, trends, and advancements of research on novel shielding materials in electromagnetic irradiation during the past few years will be thoroughly and methodically reviewed herein. The recent progress in the development of new-generation shielding materials based on biochars, 3D network structures (referred to as scaffolds in the following), materials with rare earth (referred to as rare-earth-based materials in the following), and ferrite materials will be described (Figure 1). This paper will comprehensively discuss the EMI shielding performance, basic principles and mechanisms, preparation methods, structure, morphology, and application prospects of these materials.