The physical library of New Age philosopher Dr Rudolf Steiner (1861-1925) has survived somewhat intact at Dornach, Switzerland. The library as it appears today is a post-mortem assemblage of nearly ten thousand items, mostly books. The first catalogue was made during WWII by Werner Teichert who used a bespoke categorisation scheme. Martina Maria Sam has created an updated catalogue of Rudolf Steiner’s library. She has generally followed the categorisation scheme of her predecessor, and expanded the categories from 19 to 25. Sam produced a catalogue, in 2024, comprising three published volumes. The introduction to that 3-volume work has now been published as a 106 page book, ‘An Introduction to the Library of Rudolf Steiner’, and is now reviewed. The ‘Introduction’ is recommended as a worthy acquisition for all Rudolf Steiner scholars and libraries.