β Scribed by Christopher D. Manning, Prabhakar Raghavan, Hinrich Schuetze
No coin nor oath required. For personal study only.
Even though the manual says "draft edition", this is the official solution manual; it can be sneakily obtained from cambridge itself! https://web.archive.org/web/*/https://www.cambridge.org/files/8213/6682/0421/5808_IRpsets.pdf
π SIMILAR VOLUMES
official instructor's manual for "Introduction to Topology" (2018), directly obtained from Springer's website. the previous edition of this book was published by Routledge but had no solution manual in the ancillaries; ENJOY!
instructor's solution manual (official) for the book "Codes: An Introduction to Information Communication and Cryptography" (2008), obtained right through Springer.com
instructor's solution manual (official) for the book "Introduction to Applied Optimization" (2020), obtained right through Springer.com -- this is the only "Extras Online" for the book