We had bought 3 of the nursery rhymes musical books in Aldi and our 1 year old loved them so much that we went back for more but they had all gone! So we bought more through igloo books themselves and put 6 new ones in the online shopping basket. When we got to the online checkout, it was much cheaper than I'd thought, despite still having 6 items in the basket. When the percel arrived, we understood why, there were only 4. This was a bit disappointing but we were charged the correct amount so not a huge problem. Despite now being 16 months old, he absolutely loves the new additions. The buttons are easier to press than other books we have so he gets easy satisfaction and no frustration. The illustrations are lovely and there's a lot of vocabulary that can be discussed on each page, yet not so much it becomes overwhelming. The songs are fun and jolly. Our only disappointment was with 'twinkle twinkle' as the quality of the speaker is poor compared to the others which are great quality. I think it's probably a defect on our actual copy rather than all the Twinkle books. Shame it's our son's favourite! My son would highly recommend these books and that's what's important!