This is the smaller version of the Horologion. It is better suited for regular days, not feast days, and is more aligned to the cell rule than for parochial use. There is enough material to say every service in a fairly complete manner. There are materials for Vespers and Matins for each weekday (stichera, aposticha canons, exapostilaria, no sessional hymns), as well as the Sunday material in Tone 6. Typika has a set of verses in Tone 6 for the Beatitudes and a Epistle and Gospel. There isn't any festal material beyond troparia and kontakia. A separate volume with feasts and middle feasts, as well as a complete psalter would be nice to have round it out (there are three Kathismata in it-the 1st for Sunday, the 17th for Midnight Monday-Friday, and used Saturday and Sunday at Orthros, and the 9th for Saturday Midnight).
There is an expanded two volume version (the Great Horologion) that has quite a bit more material. Volume 1 of that is avail in parallel Slavonic/English from ECPubs.