We had no reading books throughout reception, but the children did bring home books every day, but the idea was that the parents read to them. If the child could read already there were books at all levels, so they could choose to bring something they could read. Seemed to make sense to me - ie books are important and lovely, but you choose which are important to you. Once in Yr1 they can still bring as many books home as they want for parents to read, but they also bring back a reading book that they must read to you.