The book "Sfericheskie poristye mikrochasticy karbonata kal'ciya" provides a comprehensive examination of the production and application of porous microparticles made from calcium carbonate. These microparticles are of great significance in various areas of life, particularly in medicine, where they are used as carrier systems for drugs. The authors, Jel'dar Jerkenovich Gulmanov, Roman Sergeevich Sergeev, and Sergej Alexeevich Sergeev, explore the possibility of integrating magnetite nanoparticles into calcium carbonate cores to enhance their sorptive properties while maintaining their magnetic characteristics. This opens up new perspectives for applications in medicine, industry, science, and education. The microcapsules based on these cores offer a multi-layered polymer-like shell that can be utilized for the targeted transport of active substances. The book is aimed at professionals and students in the fields of mathematics and natural sciences who are engaged with innovative materials and their applications.