Introductory set of lecture notes (postscript) on topological defects, the description and properties of cosmic strings, and observational consequences. Lectures given by S. J. Poletti at the 1995 Australia National University physics summer school.
An introduction to the formation of defects in first-order phase transitions, the way these defects interact, and observational signatures of cosmic strings. Les Houches lectures by Tanmay Vachaspati, suitable for graduate students.
Alejandro Gangui's graduate-level lecture notes about the possible cosmological role and observational signatures of topological defects. Based on lectures delivered at the Xth Brazilian School on Cosmology and Gravitation in 2002.
Extensive review of the field-theoretical foundations and the dynamics of cosmic strings and other topological defects. Suitable for students with previous knowledge of field theory and cosmology. By M. B. Hindmarsh and T. W. B. Kibble.