TASI 2015 : new frontiers in fields and strings : proceedings of the 2015 Theoretical Advanced Study Institute in Elementary Particle Physics Boulder Colorado 1 26 June 2015 The conformal bootstrap David Simmons Duffin TASI lectures on AdS CFT João Penedones Higher spin CFT duality Simone Giombi TASI 2015 lectures on quantum matter (with a view toward holographic duality) John McGreevy Lectures on gravity and entanglement Mark van Raamsdonk The black hole information problem Joe Polchinski Lectures on dark matter physics Mariangela Lisanti Lectures on inflation Leonardo Senatore TASI lectures on cosmological observables and string theory Eva Silverstein