8 persons A, B, C, D, E, F, G and H are sitting by a round table each facing the center. D is second to the left of F and third to the right of H. A is second to the right of F and an immediate neighbour of H. C is second to the right of B and F is third to the right of B. G is not an immediate neighbor of F. In the above information who is to the immediate left of A?

Let's plot out an 8-position round table numbered 0 to 7 arranged sequentially in a counter-clockwise circle. When facing the center:
* Moving to a higher seat number (counter-clockwise) is moving to the Right.
* Moving to a lower seat number (clockwise) is moving to the Left.

1. Let's fix F at seat 0.
2. D is second to the left of F (clockwise), placing D at seat 2.
3. D is third to the right of H, meaning H sits 3 positions clockwise from D ($2+3=5$). Thus, H is at seat 5.
4. A is second to the right of F (counter-clockwise), placing A at seat 6. This aligns cleanly with A being adjacent to H (seat 5).
5. F is third to the right of B, which places B exactly 3 seats clockwise from F. B is at seat 3.
6. C is second to the right of B (counter-clockwise), so C occupies seat 1 ($3-2=1$).

Reviewing positions filled from 0 to 7:

* Seat 0: F
* Seat 1: C
* Seat 2: D
* Seat 3: B
* Seat 4: Empty
* Seat 5: H
* Seat 6: A
* Seat 7: Empty

7. We are explicitly told that G is not an immediate neighbor of F. The open seats are 4 and 7. Since seat 7 is next to F (at seat 0), G cannot sit there. Hence, G must sit at seat 4.
8. The single remaining open seat (seat 7) is filled by E.

The complete arrangement order is:

$$\text{[F, C, D, B, G, H, A, E]}$$

Since everyone faces the center, a person's immediate left corresponds to the next seat in the clockwise direction. The person seated immediately to the left of A (at seat 6) is located at seat 7, who is E.