It's beyond numbers. There are so many scriptures meant for prayers. But the main ones usually used daily are this; የዘውትር ሰሎት, ውዳሴ ማርያም, አንቀፀ ብርሃን,መልክ (for Saint Mary, Jesus christ and different saints) መዝሙረ ዳዊት, አርጋኖን.. it goes on and on. ውዳሴ ማርያም and አንቀፀ ብርሃን are dedicated to praising Mary. The መልክ (መልክዐ ማርያም, መልክዐ እየሱስ..) are description of how each parts of their body looks, or more like glorification, using similies. አርጋኖን is also dedicated to mary; the author is አባ ጊዮርጊስ ዘጋሥጫ, I hope you know him, he is a great 14th century saint monk. There are also more prayer books. Dedicated to certain saints or events (for example for Himamat only, for tsige only etc.)