The third volume of the popular and modern three-part alto recorder school "AltblockflötenReise", written by Daniel and Jeannette Hellbach. The publication is include an four CDs with recordings and accompaniments of most of the exercises and pieces in the book. The book is written in German, but there is very little text. All the exercises and songs are presented in a very clear way and with illustrative pictures.  
A piano accompaniments can be purchased separately (code: ACM268A).