Author
Princeton Review
74
hoopla digital
23
Kaplan Publishing
15
ACT, Inc
8
Marzano, Robert J.
7
SparkNotes LLC
7
Brookhart, Susan M.
6
Jacobs, Greg
6
ArgoPrep
5
Kanopy
5
Murphy, Barbara L.
5
Test Master Press
5
Barron's Educational Series, Inc
4
Erkens, Cassandra
4
Kaplan Test Prep and Admissions
4
Popham, W. James
4
Anaxos, Inc
3
Benson, Richard
3
Gutman, Dan
3
Haruba, Negi
3
Maitland, Laura Lincoln
3
McCune, Sandra Luna
3
Stewart, Brian W.
3
Stroud, G. J.
3
Anestis, Mark
2
Bailey, Kim
2
Bartolini-Salimbeni, Beth
2
Bruhn, Chris
2
Burke, Kay
2
Charbonneau, Joelle
2
Cody, Ronald P.
2
Depka, Eileen
2
Dodge, Eric R.
2
Donovan, Dennis
2
Dueck, Myron
2
Ehrenhaft, George
2
Fein, Melissa
2
Gillespie, Carol Ann
2
Gobble, Troy
2
Green, Sharon
2
Gruber, Gary R.
2
Kaplan Publishing, a division of Kaplan, Inc
2
Kaplan, Inc
2
Lader, Curt
2
Loh-Hagan, Virginia
2
Ma, William
2
Penguin Random House
2
Peterson's
2
Prince, Patsy J.
2
Roberts, Seth A.
2
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