"When you read Hidden Letters, the book is going to leave a mark. It’s going to hurt down deep and leave you thinking about things long after you’ve finished the book."
-Mel Odom,
Blog Review, blogcritics.org

"Hidden Letters is a treasure revealed. .... This is a compelling, disturbing, and heartbreaking great read."
-Kathleen Baxter, columnist
School Library Journal

"It is the most important and moving document I have ever read."
-Professor Barbara Cole,
Sand Hills Community College, NC

"For someone who was moved as he saw the Amsterdam Dockworkers' Memorial and was humbled by a visit to Westerbork Camp, this book brings home the pathos of all who suffered in the Netherlands under Nazi oppression. It is a real contribution to our knowledge of those pitiful times."
- Rev. Dr. John Sullivan, O.C.D.
Publisher, ICS Publications (Institute of Carmelite Studies)


"Personal narratives and testimony help us to piece together the stories and events of the Holocaust, whose lethal fingers reached into almost every corner of Europe...."
- Jewish Book World, Spring 2008
 

"The best holocaust book I've ever read,and I've read them all."
-Jack Polack,
Chairman Emeritus, The Anne Frank Society


"Much has been written about the Holocaust, but rarely has the destruction of life in a civilized country been documented with such intimacy as in these letters. They are almost unbearable to read, and yet it is essential that we do so."
-Ian Buruma
Author: Murder in Amsterdam; The Wages of Guilt

"....Hidden Letters is a salute to a destroyed youth, full of life and spirit."
- David Barnouw
&Critical Edition of Anne Frank & Who Betrayed Anne Frank?

"Hidden Letters" will appeal to WW2 buffs, to Holocaust buffs and to Jews. I am none of the above but I could not stop reading it and so I think it will appeal to everyone."
-Preston Nash
KNZR Radio

"At a time when a veritable explosion of books about the Holocaust, including such primary sources as letters, diaries and memoirs are appearing more than sixty years after the event, one might assume that further studies and reminiscences would begin to replicate each other...
- Guy Stern
Distinguished Professor Emeritus, Wayne State University
Director, Harry and Wanda Zekelman International Institute of the Righteous, Holocaust Memorial Center, Farmington Hills, Michigan


"This work is beautifully and interestingly presented, and it is the most important and most moving document I have ever read. I want to go to Vrolik Street. I want to meet Karel; can there be a better example of a friend than he?"
-Professor Barbara Cole
Author: Wash Day and Anna and Natalie

"It is spectacular."
-Rabbi Stephan L. Jacobs
Professor of Religious Studies,University of Alabama
Member of the Advisory Board of the Center for Comparative Genocide Studies