Ryan and Josh Shook's Firsthand: Ditching Secondhand Religion for a Faith of Your Own (WaterBrook Press) has become a national best-seller.

Released March 19, the debut book by Ryan, 24, and Josh, 23, the oldest sons of Kerry Shook—pastor of Woodlands Church near Houston—debuted at No. 4 on the April 7 New York Times Hardcover Advice & Miscellaneous best-sellers list and No. 5 on the April 1 Publishers Weekly Hardcover Nonfiction list.

It also debuted at No. 8 on the March 29 Wall Street Journal Hardcover Nonfiction list and No. 107 on the March 28 USA Today's Top 150 Best-Selling Books.

In the book, the two share their experiences of leaving home and doubting their faith. The brothers also address the rampant exodus of young adults from the church, speaking to their peers on the faith-related issues of emptiness, doubt, authenticity and more.

Click here for more information on Firsthand.

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