Part I. Fundamentals: 1. From near-field optics to optical antennas D. Pohl; 2. Optical antenna theory, design and applications A. Alù and N. Engheta; 3. Impedance of a nanoantenna F. Marquier and J-J. Greffet; 4. Where high-frequency engineering advances optics: active nanoparticles as nanoantennas R. W. Ziolkowski, S. Arslanagić and J. Geng; 5. Optical antennas for field-enhanced spectroscopy J. Aizpurua and R. Esteban; 6. Directionality, polarization and enhancement by optical antennas T. H. Taminiau, A. Curto and N. F. van Hulst; 7. Antennas, quantum optics and near-field microscopy V. Sandoghdar, M. Agio, X-W. Chen, S. Götzinger and K-G. Lee; 8. Nonlinear optical antennas H. Harutyunyan, G. Volpe and L. Novonty; 9. Coherent control of nano-optical excitations W. Pfeiffer, M. Aeschlimann and T. Brixner; Part II. Modeling, Design and Characterization: 10. Computational electrodynamics for optical antennas O. J. F. Martin; 11. First-principles simulations of near-field effects J. L. Payton, S. M. Morton and L. Jensen; 12. Field distribution near optical antennas at the subnanometer scale C. Pecharromán; 13. Fabrication and optical characterization of nanoantennas J. Prangsma, P. Biagioni and B. Hecht; 14. Probing and imaging of optical nanoantennas with PEEM P. Melchior, D. Bayer and M. Aeschlimann; 15. Fabrication, characterization and applications of optical antenna arrays D. Dregely, J. Dorfmüller, M. Hentschel and H. Giessen; 16. Novel fabrication methods for optical antennas W. Zhou, J. Y. Suh and T. W. Odom; 17. Plasmodic properties of colloidal clusters: towards new nanomaterials and optical circuits J. A. Fan and F. Capasso; Part III. Applications: 18. Optical antennas for information technology and energy harvesting M. L. Brongersma; 19. Nanoantennas for refractive-index sensing T. Shegai, M. Svedendahl, S. Chen, A. Dahlin and M. Käll; 20. Nanoimaging with optical antennas P. Verma and Y. Saito; 21. Aperture optical antennas J. Wenger.