Who we are: 
Rachel Sentes has a BA in English and Film and is the creative force behind Equation books. Backed by over 25 years in the book industry. As a seasoned publicist, literary agent, acquisitions editor, and developmental editor, she has worked extensively with both independent and traditional authors and agents. She takes particular pride in the strong relationships she has cultivated within the celebrity outreach sphere across Canada and the U.S. Her writing has appeared in more than 40 publications, reflecting her deep commitment to storytelling, advocacy, and industry insight. A passionate champion of social justice and animal welfare, Rachel currently resides in Guelph, Ontario, with her husband, a literary agent.

Greg Ranieri has 27 years of teaching students mathematics across three major school boards. He is the backbone of Absolute Value Publications and a staunch supporter of publishing books to reach students and readers. He has been a Consultant in interactive technologies for teaching for 15 years and has a Master’s degree in Educational Leadership. 
 
Alan Appleby taught mathematics for 38 years in Scotland and in Canada, at all levels from Grade 7 to Advanced Placement Calculus. He received the Excellence in Teaching Award from the province of Alberta. He is co-author of a series of mathematics workbooks and has experience in writing questions for regional examinations.
Now retired from teaching, he continues to write for Absolute Value Publications.
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Robert Letal is University of Calgary graduate who taught in Alberta schools for 28 years.  With two other educators he formed Absolute Value Publishing Company where he managed the day to day operations selling mathematical workbooks to schools throughout North America and to some as far away as China, and Germany.  ​