In 1899, aged 18, Rooke was employed by
William Lethaby in the school holidays to make drawings of the
Chapter House at
Westminster Abbey. This was the start of a fruitful association with Lethaby, who had become the first principal of the
Central School of Arts and Crafts in 1896. He wanted it to become for design and the crafts what the Slade and the
Royal Academy were for the fine arts. Rooke joined the Central School as a student in 1899 and was in the first class of students to learn calligraphy from
Edward Johnston along with
Florence Kingsford Cockerell. Johnston taught Rooke that the form of a letter should be determined by the tool making the letter, a principle which Rooke later applied to wood engraving. In 1904 Rooke also attended evening classes in wood engraving at the
London County Council School of Photo-engraving and Lithography in Bolt Court, where he learned the skills of wood engraving from
R. John Beedham. At the period Eric Gill gave classes in stone carving and inscriptions, and Rooke later gave Gill private lessons in wood engraving. In 1905 Rooke became a teacher of book illustration at the Central School, and introduced wood engraving for book decoration into his syllabus. He faced opposition from
Frank Morley Fletcher and
Sydney Lee who taught classes in
colour woodcuts in the Japanese style. Lethaby had had to overcome opposition to Johnston's calligraphy classes, and, along with most artists at the time, saw wood engraving simply as the reproductive medium that it had been until then. He vetoed the introduction of the new style of wood engraving into the curriculum. When he left in 1911 Rooke was able introduce a class in lettering and wood engraving in 1912, and a class in wood engraving and poster design in 1913. In 1914 Rooke became head of the School of Book Production, a post that he held until 1946. He was an important member of a group whose ideas set the tone of the formative years of the Central School. This was a time of cross fertilisation where extraordinary people came together and barriers between crafts and skills were broken down. Lethaby was the editor of a series of books:
the Artistic Crafts Series of Technical Handbooks, and Rooke drew illustrations and diagrams for three of them -
Bookbinding, and the care of books (1901) by Douglas Cockerell,
Writing and Illuminating, and Lettering (1906) by Johnston and
Hand-loom Weaving (1910) by Luther Hooper. These became standard works on their subject, and, along with the other handbooks in the series, ran into many editions. ==His influence as a teacher==