Exhibit 99.1

Cambium Learning Group Announces 2014 Cash Income of $23 Million

Order Volume from Technology-Enabled Products Show Continued Growth

Cash Income Margin Expansion Driven by Technology-Enabled Products and Cost Management

Learning A-Z Segment Order Volume Increased 30%, Adjusted EBITDA Increased 25%

Prepaid $35 Million in Debt During 2014

DALLAS, March 17, 2015—Cambium Learning^® Group, Inc. (NASDAQ: ABCD, the “Company”), a leading educational solutions and services company committed to helping all students reach their full potential, announced today its financial results for the year ended December 31, 2014.

“Our 2014 profitability and cash flow demonstrate the considerable progress we made on our strategy to increase technology-enabled solutions in our revenue and order mix while right-sizing costs, enabling all of our segments to better meet the needs of teachers and students,” said John Campbell, chief executive officer of Cambium Learning Group, Inc. “For the year ended December 31, 2014, 60% of order volumes were generated by technology-enabled products versus 46% during 2013 and 37% in 2012. This transformation was led by Learning A-Z’s 30% growth in order volume.”

Mr. Campbell continued, “The success of Learning A-Z gives us confidence that the decisions we are making throughout the company are the correct ones. We are transforming Voyager Sopris Learning through prudent investments in this segment’s technology-enabled future and adjustments to its cost structure to be in line with its performance improvements. Our technology-enabled solutions prepare students to achieve and thrive in increasingly rigorous testing environments. Our unique capabilities are driving our market acceptance, with plenty of opportunity remaining available for additional growth.”

For the quarter ended December 31, 2014, Adjusted EBITDA and Cash Income increased 30% and 8%, respectively, with GAAP net revenues that were comparable with the same period of 2013:

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For the year ended December 31, 2014, company-wide order volumes were down 5% compared with the same period of 2013, consistent with the trending the Company experienced through the third quarter. Order volume, Adjusted EBITDA, and Cash Income changes by segment for the three and twelve months ended December 31, 2014 compared to the same periods of 2013 were as follows, with Learning A-Z growing in all three measures:

Highlights from 2014 results include:

2015 Strategy and Outlook

“2015 is planned to be a year of investment in which we build a platform for continued consolidated Company growth,” said Mr. Campbell. “We now have firm proof of the success of our technology-enabled products. As Learning A-Z, ExploreLearning, and newer products in our other segments like LANGUAGE!^® Live and firefly have already shown, we have a tremendous opportunity to transform our business model through continued strong execution of our development, marketing, and sales plans. Therefore, we will continue to deploy cash generated by legacy products to invest in high-return, technology-enabled opportunities and selectively expand our sales and marketing capabilities, maintaining careful oversight of the relationship of our cost base to order volume and revenue performance, to create a higher-margin, growing business. Order volumes generated by our faster growing technology-enabled solutions may grow to 70% or more of our 2015 total. Ultimately, we want our success as a provider of solutions that help all students reach their full potential to also drive strong returns for our stakeholders.”

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The essential tenets of the Company’s strategy continue to be:

The Company’s strategy specific to each segment includes the following:

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Company-wide order volumes are expected to be up slightly in 2015 compared to 2014. The Company expects continued strong double-digit order volume growth in Learning A-Z and higher order volume growth in ExploreLearning than the 1% experienced in 2014, which was impacted by tough comparables in 2013. 2015 is expected to further transform the Voyager Sopris Learning and Kurzweil Education segments, where order volumes are expected to decline but at a lower percentage than the 20% and 24%, respectively, experienced in 2014. Assuming the Company’s strategies for Voyager Sopris Learning and Kurzweil Education continue to progress on plan, order volumes at each of these segments could return to growth in 2016. The Company’s objective is to build a platform for growth in 2016.

Cambium Learning Group’s business is highly seasonal; the first quarter historically represents less than 15% of order volumes, which tend to build through the second quarter and peak during the third quarter, representing by far the preponderance of orders, revenue, and income for the year.

The Company plans to reinstitute the practice of conducting quarterly conference calls with analysts and investors in May with the release of its first quarter 2015 results.

Non-GAAP Financial Measures

Bookings (Order Volume), EBITDA, Adjusted EBITDA, and Cash Income are not prepared in accordance with GAAP and may be different from similarly named, non-GAAP financial measures used by other companies. Non-GAAP financial measures should not be considered a substitute for, or superior to, measures of financial performance prepared in accordance with GAAP. The Company believes that these non-GAAP measures provide useful information to investors because they reflect the underlying performance of the ongoing operations of the Company and provide investors with a view of the Company’s operations from management’s perspective. Adjusted EBITDA and Cash Income remove significant purchase accounting, non-operational, or certain non-cash items from earnings. The Company uses Bookings (Order Volume), Adjusted EBITDA and Cash Income to monitor and evaluate the operating performance of the Company and as the basis to set and measure progress towards performance targets, which directly affect compensation for employees and executives. The Company generally uses these non-GAAP measures as measures of operating performance and not as measures of the Company’s liquidity. The Company’s presentation of Bookings (Order Volume), EBITDA, Adjusted EBITDA, and Cash Income should not be construed as an indication that our future results will be unaffected by unusual, non-operational, or non-cash items.

About Cambium Learning Group, Inc.

Cambium Learning^® Group is a leading educational solutions and services company committed to helping all students reach their full potential. Cambium Learning accomplishes this goal by providing evidence-based solutions and expert professional services to empower educators and raise the achievement levels of all students. The company is composed of four business units:, Learning A–Z (www.learninga-z.com), ExploreLearning^® (www.explorelearning.com), Kurzweil Education™ (www.kurzweiledu.com), and Voyager Sopris Learning™ (www.voyagersopris.com). Together, these business units provide breakthrough technology solutions for online learning and professional support; best-in-class intervention and supplemental instructional materials; gold-standard professional development and school-improvement services; valid and reliable assessments; and proven materials to support a positive and safe school environment. Cambium Learning Group, Inc. (Nasdaq: ABCD), is based in Dallas, Texas. For more information, please visit www.cambiumlearning.com.

Media and Investor Contact:

Barbara Benson

Cambium Learning Group, Inc.

investorrelations@cambiumlearning.com

LHA

Jody Burfening/Carolyn Capaccio

212.838.3777

ccapaccio@lhai.com

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Forward-Looking Statements

Some of the statements contained herein constitute forward-looking statements. These statements relate to future events, including the future financial performance of Cambium Learning Group, Inc., and involve known and unknown risks, uncertainties, and other factors that may cause the markets, actual results, levels of activity, performance, or achievements of Cambium Learning Group, Inc., to be materially different from any actual future results, levels of activity, performance, or achievements. These risks and other factors you should consider include, but are not limited to, the ability to successfully attract and retain a broad customer base for current and future products, changes in customer demands or industry standards, success of ongoing product development, maintaining acceptable margins, the ability to control costs, K–12 enrollment and demographic trends, the level of educational funding, the impact of federal, state, and local regulatory requirements on the business of the company, the loss of key personnel, the impact of competition, the uncertainty of general economic conditions and financial market performance, and those other risks and uncertainties listed under the heading “RISK FACTORS” in Cambium Learning Group, Inc.’s Form 10-K and other reports filed with the Securities and Exchange Commission. In some cases, you can identify forward-looking statements by terminology such as “may,” “should,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “potential,” “continue,” “projects,” “intends,” “prospects,” or “priorities,” or the negative of such terms, or other comparable terminology. These statements are only predictions. Actual events or results may differ materially. Cambium Learning Group, Inc., does not assume or undertake any obligation to update the information contained in this press release, and expressly disclaims any obligation to do so, whether as a result of new information, future events, or otherwise.

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Cambium Learning Group, Inc. and Subsidiaries

Condensed Consolidated Statements of Operations

(In thousands, except per share data)

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Cambium Learning Group, Inc. and Subsidiaries

Condensed Consolidated Balance Sheets

(In thousands, except per share data)

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Cambium Learning Group, Inc. and Subsidiaries

Condensed Consolidated Balance Sheets

(In thousands, except per share data)

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Cambium Learning Group, Inc. and Subsidiaries

Reconciliation of Net Loss to Cash Income

(unaudited)

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Cambium Learning Group, Inc. and Subsidiaries

Reconciliation of Bookings to Net Revenues by Segment

(unaudited)

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Cambium Learning Group, Inc. and Subsidiaries

Reconciliation of Net Income (Loss) to Cash Income by Segment

(unaudited)

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Cambium Learning Group, Inc. and Subsidiaries

Deferred Revenue by Segment

Cambium Learning Group, Inc. and Subsidiaries

Deferred Costs by Segment

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Cambium Learning Group, Inc. and Subsidiaries

Reconciliation of Bookings to Net Revenues by Segment

(unaudited)

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Cambium Learning Group, Inc. and Subsidiaries

Reconciliation of Net Income (Loss) to Cash Income by Segment

(unaudited)