God's Inspirational Promise Book, by Max Lucado, and Joy for the Journey, by various authors, are two of my favorite short devotional books for when I truly only have 2-5 minutes for quiet time, or I'm hurting so badly I need help finding my way.
Wise for Salvation by Christie Thomas is a devotional book for ages 1-6. It’s not just a Bible storybook, though it does have many, many Bible stories in it. Instead, it looks at a single Bible story for five days and allows your kids to interact with that story in a variety of ways. Love!