I've been using Holt's Komm Mit German textbooks for over 4 years now, and I have to say that they're an exceptional series. I'd recommend these books to any beginner, intermediate-to-higher level German student.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.