EXHIBIT 24.1 DIRECTOR'S POWER OF ATTORNEY (2007 Form 10-K) The undersigned director of Renaissance Learning, Inc. designates each of Terrance D. Paul and Mary T. Minch, with the power of substitution, as her true and lawful attorney-in-fact for the purpose of: (i) executing in her name and on her behalf Renaissance Learning, Inc.'s Form 10-K for the fiscal year ended December 31, 2007 and any related amendments and/or supplements; (ii) generally doing all things in her name and on her behalf in her capacity as a director to enable Renaissance Learning, Inc. to comply with the provisions of the Securities Act of 1934, as amended, and all requirements of the Securities and Exchange Commission; and (iii) ratifying and confirming her signature as it may be signed by the attorney-in-fact to the Form 10-K and any related amendments and/or supplements. Dated this 30th day of January, 2008. /s/ Judith A. Paul -------------------------- Judith A. Paul 1 DIRECTOR'S POWER OF ATTORNEY (2007 Form 10-K) The undersigned director of Renaissance Learning, Inc. designates Mary T. Minch, with the power of substitution, as his true and lawful attorney-in-fact for the purpose of: (i) executing in his name and on his behalf Renaissance Learning, Inc.'s Form 10-K for the fiscal year ended December 31, 2007 and any related amendments and/or supplements; (ii) generally doing all things in his name and on his behalf in his capacity as a director to enable Renaissance Learning, Inc. to comply with the provisions of the Securities Act of 1934, as amended, and all requirements of the Securities and Exchange Commission; and (iii) ratifying and confirming his signature as it may be signed by the attorney-in-fact to the Form 10-K and any related amendments and/or supplements. Dated this 30th day of January, 2008. /s/ Terrance D. Paul -------------------------- Terrance D. Paul 2 DIRECTOR'S POWER OF ATTORNEY (2007 Form 10-K) The undersigned director of Renaissance Learning, Inc. designates Terrance D. Paul and Mary T. Minch, with the power of substitution, as his true and lawful attorney-in-fact for the purpose of: (i) executing in his name and on his behalf Renaissance Learning, Inc.'s Form 10-K for the fiscal year ended December 31, 2007 and any related amendments and/or supplements; (ii) generally doing all things in his name and on his behalf in his capacity as a director to enable Renaissance Learning, Inc. to comply with the provisions of the Securities Act of 1934, as amended, and all requirements of the Securities and Exchange Commission; and (iii) ratifying and confirming his signature as it may be signed by the attorney-in-fact to the Form 10-K and any related amendments and/or supplements. Dated this 28th day of January, 2008. /s/ John H. Grunewald -------------------------- John H. Grunewald 3 DIRECTOR'S POWER OF ATTORNEY (2007 Form 10-K) The undersigned director of Renaissance Learning, Inc. designates Terrance D. Paul and Mary T. Minch, with the power of substitution, as his true and lawful attorney-in-fact for the purpose of: (i) executing in his name and on his behalf Renaissance Learning, Inc.'s Form 10-K for the fiscal year ended December 31, 2007 and any related amendments and/or supplements; (ii) generally doing all things in his name and on his behalf in his capacity as a director to enable Renaissance Learning, Inc. to comply with the provisions of the Securities Act of 1934, as amended, and all requirements of the Securities and Exchange Commission; and (iii) ratifying and confirming his signature as it may be signed by the attorney-in-fact to the Form 10-K and any related amendments and/or supplements. Dated this 2nd day of February, 2008. /s/ Gordon H. Gunnlaugsson ---------------------------- Gordon H. Gunnlaugsson 4 DIRECTOR'S POWER OF ATTORNEY (2007 Form 10-K) The undersigned director of Renaissance Learning, Inc. designates Terrance D. Paul and Mary T. Minch, with the power of substitution, as his true and lawful attorney-in-fact for the purpose of: (i) executing in his name and on his behalf Renaissance Learning, Inc.'s Form 10-K for the fiscal year ended December 31, 2007 and any related amendments and/or supplements; (ii) generally doing all things in his name and on his behalf in his capacity as a director to enable Renaissance Learning, Inc. to comply with the provisions of the Securities Act of 1934, as amended, and all requirements of the Securities and Exchange Commission; and (iii) ratifying and confirming his signature as it may be signed by the attorney-in-fact to the Form 10-K and any related amendments and/or supplements. Dated this 15th day of February, 2008. /s/ Harold E. Jordan -------------------------- Harold E. Jordan 5 DIRECTOR'S POWER OF ATTORNEY (2007 Form 10-K) The undersigned director of Renaissance Learning, Inc. designates Terrance D. Paul and Mary T. Minch, with the power of substitution, as his true and lawful attorney-in-fact for the purpose of: (i) executing in his name and on his behalf Renaissance Learning, Inc.'s Form 10-K for the fiscal year ended December 31, 2007 and any related amendments and/or supplements; (ii) generally doing all things in his name and on his behalf in his capacity as a director to enable Renaissance Learning, Inc. to comply with the provisions of the Securities Act of 1934, as amended, and all requirements of the Securities and Exchange Commission; and (iii) ratifying and confirming his signature as it may be signed by the attorney-in-fact to the Form 10-K and any related amendments and/or supplements. Dated this 1st day of February, 2008. /s/ Addison L. Piper -------------------------- Addison L. (Tad) Piper 6 DIRECTOR'S POWER OF ATTORNEY (2007 Form 10-K) The undersigned director of Renaissance Learning, Inc. designates Terrance D. Paul and Mary T. Minch, with the power of substitution, as her true and lawful attorney-in-fact for the purpose of: (i) executing in her name and on her behalf Renaissance Learning, Inc.'s Form 10-K for the fiscal year ended December 31, 2007 and any related amendments and/or supplements; (ii) generally doing all things in her name and on her behalf in her capacity as a director to enable Renaissance Learning, Inc. to comply with the provisions of the Securities Act of 1934, as amended, and all requirements of the Securities and Exchange Commission; and (iii) ratifying and confirming her signature as it may be signed by the attorney-in-fact to the Form 10-K and any related amendments and/or supplements. Dated this 29th day of January, 2008. /s/ Judith A. Ryan -------------------------- Judith A. Ryan 7