DYNAMIC ENGLISH by Kosten
This is actually a repertoire book that recommends using the English (1.c4) as your main weapon. The pawn structures are clearly explained, and the variations are very attractive. (1400 on up)
DYNAMIC RETI by Nigel Davies
Davies shows how 1.Nf3 can be a highly combative and exciting opening choice. IM John Donaldson loves this book. Click to see HIS REVIEW. (1600 on up)
