@article{beyondrephrasingbooklevelorganizationimp,
  title = {Beyond Rephrasing: Book-Level Organization Improves Synthetic Textbook Data for Mid-Training},
  author = {Jiawen Tao and Miao Peng and Yaoming Li and Xiaokun Yuan and Mengzhou Wu and Wenhan Yu and Guoan Wang and Nuo Chen and Tong Yang and Maxm Pan},
  year = {2026},
  eprint = {2607.28109},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.28109},
}