**2. Purpose of the review**

The prime motive of the review is to focus on the synthesis and characterization methods of ZnCu ferrites. The subject of magnetic nanostructures is wide, and several articles are published. The ZnCu ferrites, constitute a special niche of nanoparticles because of the attraction of the scientific community towards soft ferrites. In addition, the study discusses the choice of techniques for synthesizing ZnCu ferrites by demand. The synthesis techniques such as the sol–gel [53], co-precipitation [54], a conventional ceramic technique [55–57], a hydrothermal method [58], citrate precursor [59], and microemulsion [60] for the synthesis of ZnCu ferrites are discussed.
