Mitchell & Robinson have educated generations of students in the delights of Anglo-Saxon, and their textbook (now into its 5th edition) is widely recognised as the classic work on the subject.
Their approach to the language is a bit intimidating at first - new students will be a little concerned to see the way in which words and phrases like 'orthography' and 'derived paradigms' are bandied around. However, once you get into their teaching style, learning the language becomes a dynamic process. The authors emphasise that the course is designed for students who are working on their own, without the assistance of a teacher or classroom study - although the text is widely used in colleges.
Well laid out, the authors take you through pronunciation, the parsing of sentences and grammatical structure, helping you build a vocabulary and initial competence in translation. The second half of the book moves from grammar into a series of passages for translation. A limited vocabulary is provided at the rear.
All in all, a substantial piece of scholarship, a language course which has more than stood the test of time, and a learning system which you can approach at your own pace if you are working on your own. An essential tool for scholars of English and the Anglo-Saxon invasion.