The training manual was prepared in accordance with the requirements of the GEF HE training of bachelors in the following areas: 20. 03. 01, 27. 03. 02, 15. 03. 02, 27. 03. 01, 19. 03. 02, 15. 03. 03, 27. 03. 04, 18. 03. 02, 19. 03. 03, 19. 03. 04, 18. 03. 01, 38. 03. 07, 09. 03. 03, 19. 03. 01, 15. 03. 04 and specialists in the following areas: 04. 05. 01, 10. 05. 03, 15. 05. 01. The theoretical foundations of electronic and optical phenomena in solids and solid elements of electronics are presented, the schemes of laboratory installations are considered, the methods of performing experiments on them are described. ;Griff:Admitted by the Scientific and Methodological Council for Physics of the Ministry of Education and Science of the Russian Federation as a training manual for university students studying in technical areas of training and specialties