A visual guide to biology will help students systematize, concretize and deepen the acquired knowledge and skills, as well as learn to work independently. The structure and content of the manual correspond to the current biology program for secondary educational institutions. The educational material is grouped by program topics and presented in a visual form: in the form of tables, diagrams, diagrams, graphs, figures, accompanied by the necessary comments. The informative illustrative material of the reference book enhances the emotional perception of educational information, activates creative comprehension and deeper assimilation of acquired knowledge.