Houghton Mifflin Harcourt
Test Prep

Test Prep

Let Houghton Mifflin Harcourt help you prepare for your most important tests, with test prep resources for the SAT®, ACT®, *AP and GED®. You’ll get test-taking strategies, subject reviews and practice tests to help you score higher on the exam.

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Featured CliffsNotes Test Prep - SAT®, ACT®, and *AP

SAT w/ CD-ROM

SAT
w/CD-ROM

Grades 9–12

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SAT Cram Plan

SAT Cram Plan
 

Grades 9–12

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ACT w/CD-ROM

ACT
w/CD-ROM

Grades 9–12

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ACT Cram Plan

ACT Cram Plan
Paperback

Grades 9–12

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CliffsNotes AP Biology Fourth Edition

AP Biology
Paperback

Grades 9–12

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Featured GED® Test Prep

Practice 4 GED Complete Skills

Complete Skills
Adults

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Practice 4 GED Mathematics

Mathematics
Adults

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Practice 4 GED Reading

Reading
Adults

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Practice 4 GED Science

Science
Adults

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Practice 4 GED Social Studies

Social Studies
Adults

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