 Inverted perovskite solar cells, IPSCs, have shown promise as a viable alternative to traditional silicon-based photovoltaic technology due to their low cost, high efficiency, and ease of manufacture. However, despite significant progress in the field, IPSCs still lag behind conventional silicon-based solar cells in terms of efficiency. Recent advances in the understanding of the underlying physics of IPSCs have enabled researchers to develop strategies to improve the performance of these devices. This paper reviews the current state of the art in IPSCs, focusing on the use of different hole transport materials, device fabrication techniques, and interface and additive engineering methods to reduce non-radiative recombination. The authors also discuss potential future directions for further improving the performance of IPSCs. This article was authored by Ayulee, Zulu, and Jianjia Chen.