Ecclesiastes is for people who have their doubts about God, but can't stop thinking about him. The author of Ecclesiastes had his doubts, too, and these have enabled him to speak to skeptics as well as believers down through the centuries.
Ecclesiastes is a book rich in literary artistry and multi-layered depths of spiritual meaning. In Why Everything Matters, Philip G. Ryken explores this wonderful Old Testament book, and reminds us again of the need to trust God with the questions, even when we do not have all the answers.