The below versions are Integriertes Kurs- und Arbeitsbuch. Please make sure to buy the complete versions of the book and NOT THE TEILBAND EDITIONS, which are only sections of each book. All textbooks are by Schubert-Verlag, publishers based out of Leipzig.
Spektrum A1+ (for A1.1. and A1.2. Beginner I and II levels)
ISBN 978-3-941323-29-2
Schubert-Verlag, 2017
DO NOT BUY THE TEILBAND EDITIONS
Spektrum A2+ (for A2.1. and A2.2. Advanced Beginnger I and II levels)
ISBN 978-3-941323-31-5
Schubert-Verlag, 2018
DO NOT BUY THE TEILBAND EDITIONS
Spektrum B1+ (for B1.1., B1.2., and B1.3. Intermediate I, II, and III levels)
ISBN 978-3-941323-34-6
Schubert-Verlag, 2018
DO NOT BUY THE TEILBAND EDITIONS
Erkundungen B2 (for B2(A), B2(B), and B2(C) Upper Intermediate level modules A-C)
ISBN 978-3-941323-43-8
Schubert-Verlag, 2019
Erkundungen C1 (for C1(A), C1(B), and C1(C) Advanced level modules A-C)
ISBN 978-3-941323-25-4
Schubert-Verlag, 2016
Erkundungen C2 (for C2(A), C2(B), and C2(C) Mastery level modules A-C)
ISBN 978-3-941323-22-3
Schubert-Verlag, 2014
