Description The 21st Century Junior Library Women Innovators series highlights the contributions of women to STEM fields. Hedy Lamarr and Classified Communication examines the life of this important woman and her contributions to modern technology like Wi-Fi, GPS, and Bluetooth. Sidebars encourage readers to engage in the material by asking deeper questions or conducting individual research. Full color photos, a glossary, and a listing of additional resources all enhance the learning experience.