This is well organized and structured Dawah Book, which is a compilation of many Dawah videos and Debate.
This book counters most of the arguments of Atheism, Evolution and False Christian beliefs.
This is the main Book and a big one, you can also download individual parts of the book as well, under the name of, "Why Not Atheism?!", "Why Not Evolution?!", and "Why Not Christianity?!". If you are only interested in one part, you can download it, if you want everthing in big large book, you can download this book.
Hope to Guide people to their Real creator, The only One God, Allah, So That they enjoy an amazing life and afterlife!!