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Interstate Study Guides: Amazon KDP author data

Interstate Study Guides has 15 books on Amazon, 14 of them on a best-seller list in the last 30 days (best rank #5), mostly in Test Preparation & Review, Reviews & Study Guides, Nursing.

15Books on Amazon
14Listed in 30 days
5.0Average rating
Median price$12.99
Price range (middle 50%)$12.99 – $24.99
Median reviews1
Total reviews3
New books (30 days)14
Breakout books (30 days)8

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What stands out

  • 93% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
  • Median price $12.99, 30% above the median of their main category, Test Preparation & Review.
  • 14 new books in the last 30 days, 8 of them broke into a Best Sellers list.

Interstate Study Guides's best-ranked books

  1. CDL Study Guide 2026-2027: All-in-One Commercial Driver's License Prep with 500 Practice Q book cover by Interstate Study Guides

    CDL Study Guide 2026-2027: All-in-One Commercial Driver's License Prep with 500 Practice Questions and Detailed Answer Explanations

    by Interstate Study Guides

    • Price$12.99
    • Rating5.0
    • Reviews1

    View on Amazon · Full data on KDPTop

  2. OCN Study Guide 2026-2027: All-in-One Oncology Nursing Certification Exam Prep with 500 Pr book cover by Interstate Study Guides

    OCN Study Guide 2026-2027: All-in-One Oncology Nursing Certification Exam Prep with 500 Practice Questions and 3 Full-Length Practice Exams with Detailed Answer Explanations

    by Interstate Study Guides

    • Price$12.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  3. CCHT Study Guide 2026-2027: All-in-One Hemodialysis Technician Exam Prep with 850 Practice book cover by Interstate Study Guides

    CCHT Study Guide 2026-2027: All-in-One Hemodialysis Technician Exam Prep with 850 Practice Questions Including a True-to-Exam 150-Question Full-Length Practice Exam with Detailed Answer Explanations

    by Interstate Study Guides

    • Price$12.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  4. Pediatric CCRN Study Guide 2026-2027: All-in-One Pediatric Critical Care Nursing Exam Prep book cover by Interstate Study Guides

    Pediatric CCRN Study Guide 2026-2027: All-in-One Pediatric Critical Care Nursing Exam Prep with 850 Practice Questions and a 150-Question Full-Length Practice Exam with Detailed Answer Explanations

    by Interstate Study Guides

    • Price$12.99
    • Reviews-
    • Published2026-10

    View on Amazon · Full data on KDPTop

  5. PCCN Study Guide 2026-2027: All-in-One Progressive Care Nursing Exam Prep with 500 Practic book cover by Interstate Study Guides

    PCCN Study Guide 2026-2027: All-in-One Progressive Care Nursing Exam Prep with 500 Practice Questions, Full-Length Practice Tests, and Detailed Answer Explanations

    by Interstate Study Guides

    • Price$12.99
    • Reviews-
    • Published2026-09

    View on Amazon · Full data on KDPTop

  6. CNML Study Guide 2026-2027: All-in-One Nurse Manager and Leader Exam Prep with 815 Practic book cover by Interstate Study Guides

    CNML Study Guide 2026-2027: All-in-One Nurse Manager and Leader Exam Prep with 815 Practice Questions Including a True-to-Exam 115-Question Full-Length Practice Exam with Detailed Answer Explanations

    by Interstate Study Guides

    • Price$12.99
    • Reviews-
    • Published2026-10

    View on Amazon · Full data on KDPTop

  7. Florida CDL Study Guide 2026-2027:: Florida Commercial Driver's License Exam Prep with DHS book cover by Interstate Study Guides

    Florida CDL Study Guide 2026-2027:: Florida Commercial Driver's License Exam Prep with DHSMV Rules, Endorsement Review, and 450 Practice Questions with Explanations

    by Interstate Study Guides

    • Price$24.99
    • Rating5.0
    • Reviews1

    View on Amazon · Full data on KDPTop

  8. Florida CDL Study Guide 2026-2027: Florida Commercial Driver's License Exam Prep with DHSM book cover by Interstate Study Guides

    Florida CDL Study Guide 2026-2027: Florida Commercial Driver's License Exam Prep with DHSMV Rules, Endorsement Review, and 450 Practice Questions with Explanations

    by Interstate Study Guides

    • Price$12.99
    • Rating5.0
    • Reviews1

    View on Amazon · Full data on KDPTop

  9. Texas CDL Study Guide 2026-2027: Complete Texas Commercial Driver's License Prep with Stat book cover by Interstate Study Guides

    Texas CDL Study Guide 2026-2027: Complete Texas Commercial Driver's License Prep with State-Specific Rules, Road Signs, and 500 Practice Questions with Detailed Explanations

    by Interstate Study Guides

    • Price$24.99
    • Reviews-
    • Published2026-09

    View on Amazon · Full data on KDPTop

  10. CNOR Study Guide 2026-2027: All-in-One Perioperative Nursing Certification Exam Prep with  book cover by Interstate Study Guides

    CNOR Study Guide 2026-2027: All-in-One Perioperative Nursing Certification Exam Prep with 900 Practice Questions Including a True-to-Exam 200-Question Full-Length Practice Exam with Detailed Answer

    by Interstate Study Guides

    • Price$12.99
    • Reviews-

    View on Amazon · Full data on KDPTop

Main categories

About this data

Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.