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ReasonSpan™ illustrated ebooks

See the system.
Understand the decision.

Build the understanding behind an exam answer with physical systems, worked reasoning and reference routes. Preview selected pages and choose the book that fits your discipline and exam date.

PE Civil Construction ebook cover

PE Civil Construction

304 pages across 11 domains. Choose the edition for exams through March 2027 or April 2027 onward.

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PE Architectural Engineering ebook cover

PE Architectural Engineering

302 pages across four building-system domains. Explore concept families, workshops and the Decision Compass.

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