Books which explicitly and directly critique religion from a secular atheist perspective have been incredibly popular in recent years, but while critique of religion may be a necessary starting point it isn't the ending point — or even very much of the journey. Critique of religion tells us about what isn't reasonable to believe or do, but more is needed to understand what is reasonable to believe or do.
Thus the books critiquing religion have created space that needs to be filled by different sorts books and Ronald Aronson make his contribution with Living Without God: New Directions for Atheists, Agnostics, Secularists, and the Undecided. There is hardly anything here that would qualify as a criticism of religion; instead of describing where religions get things wrong Aronson offers ideas about where secular atheists should go instead to get things right.
There are a lot of positives and negatives in Aronson's effort, depending on how you look at it. Basically, the details are all generally good but they are framed and presented in a way that isn't so good and which takes away from the overall effort. The central problem as I see it is that Aronson seems to want to offer an overall philosophy or set of principles for nonbelievers. His motive is good and he's justifiably concerned with the lack of confidence nonbelievers have, at least relative to believers.