Heppel's 2025 Book Recommendation
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Heppel's 2024 Book Recommendation
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Heppel's 2022 Book Recommendation
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Heppel's 2022 Podcast Recommendation
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Heppel's 2021 Book Recommendation
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Heppel's 2020 Book Recommendation
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Heppel's 2019 Book Recommendation
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