x=0
linea=True
data_lists = data_list = []
file = open("books-info.txt")

while linea:
	linea=file.readline()
	x+=1
	if x==6:
		data_lists.append(data_list)
		x=0
		data_list=[]
	else:
		data_list.append( linea.strip() )

file.close()