The Tschäppeler and Krogerus Collection
These stylish and compact little black books are powerful assets to help you get ahead in life. The international bestseller and global phenomenon The Decision Book leads onto the incredibly useful guides The Test Book, The Question Book and The Change Book.
The Test Book
Mikael Krogerus
The bestselling authors of The Decision Book return with their most fascinating and practical book yet.
The Question Book
Mikael Krogerus
The Decision Book was a global phenomenon, and number 6 in the bestselling business books of the year for 2011. Now the authors return with compulsive…
