This document contains over 100 images from the Histology Department of Cairo University's Faculty of Medicine. The images show microscopic views (LM and EM) of various cell structures and tissues, including nuclei, cell membranes, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, epithelial tissues, connective tissues, blood cells, and more. The images are intended to provide examples for educational use in the study of histology and cell and tissue structures.