I am an experienced software developer, want to refresh discrete math back in uni.I am looking for a book that is easy to read, contains more examples, and exercises and solutions for self study beginner.There are two books below that are recommended by others. Which one should I pick:Susanna S. Epp's Discrete Mathematics with Applications 4th 2010Kenneth Rosen's Discrete Mathematics and Its Applications 7th 2011Below are their books in uk, one of which I will buy based on the US edition.Susanna S. Epp's Discrete Mathematics with Applications 4th 2011 Kenneth Rosen's Discrete Mathematics and Its Applications Global Edition 
Discrete Mathematics books for Computer Science Self-study
algorithms;asymptotics;discrete mathematics