Genuinely enjoyed the book. A couple of notes: 1. In The Long Tail > Nested Queries, the first example contains the function LEN, which gives an error as LENG

Genuinely enjoyed the book. A couple of notes: 1. In The Long Tail > Nested Queries, the first example contains the function LEN, which gives an error as LENGTH is expected. 2. On the questions with multiple answers, when showing hints, I would use different font colors for correct/incorrect statements as it will be easier to check your results. Wonderful website!