Article Review: M. Insall, P.A. Loeb, M.A. Marciniak, “General and End Compactifications”, in: P.A. Loeb, M.P.H. Wolff (eds.), Nonstandard Analysis for the Working Mathematician, Springer, Dordrecht, 2015, pp. 165-176. Review published in Mathematical Reviews (MathSciNet)