Interstellar and Intergalactic Medium

'Ryden and Pogge have written a text with the goal of covering what every professional astronomer should know about the interstellar and intergalactic medium. They have succeeded brilliantly. This text provides comprehensive coverage of the topics without diving too far into specialist details. The authors' gift for clear writing, combined with a degree of humor and entertainment, result in an eminently readable textbook.' Evan Skillman, University of Minnesota