The study investigates the generation and control of topological spin textures in an insulating van der Waals ferromagnet, CrBr3. Using high-resolution magnetic force microscopy (MFM), Lorentz transmission electron microscopy (LTEM), and photoluminescence (PL) spectroscopy, the researchers demonstrate the coexistence of different magnetic phases, including stripe domains, skyrmion crystals, and magnetic domains, in CrBr3. The interplay between sample thickness, external magnetic fields, and optical excitations is shown to generate a variety of spin textures. Micromagnetic simulations support the experimental findings, revealing the cooperative effect between dipolar interactions, spin anisotropy, and exchange fields in driving the phase transformation. The study also explores the thickness dependence of these textures, identifying three regimes: ultrathin (Neel-like), intermediate (hybrid), and bulk-like (Bloch-like). Additionally, the researchers use magneto-photoluminescence spectroscopy to probe the impact of skyrmions on ferromagnetic hysteresis loops, demonstrating exciton-skyrmion coupling. The findings highlight CrBr3 as a promising material for the manipulation and generation of highly ordered skyrmion lattices, with potential applications in information storage technologies.The study investigates the generation and control of topological spin textures in an insulating van der Waals ferromagnet, CrBr3. Using high-resolution magnetic force microscopy (MFM), Lorentz transmission electron microscopy (LTEM), and photoluminescence (PL) spectroscopy, the researchers demonstrate the coexistence of different magnetic phases, including stripe domains, skyrmion crystals, and magnetic domains, in CrBr3. The interplay between sample thickness, external magnetic fields, and optical excitations is shown to generate a variety of spin textures. Micromagnetic simulations support the experimental findings, revealing the cooperative effect between dipolar interactions, spin anisotropy, and exchange fields in driving the phase transformation. The study also explores the thickness dependence of these textures, identifying three regimes: ultrathin (Neel-like), intermediate (hybrid), and bulk-like (Bloch-like). Additionally, the researchers use magneto-photoluminescence spectroscopy to probe the impact of skyrmions on ferromagnetic hysteresis loops, demonstrating exciton-skyrmion coupling. The findings highlight CrBr3 as a promising material for the manipulation and generation of highly ordered skyrmion lattices, with potential applications in information storage technologies.