Gerard Welling is an International Master and an experienced chess trainer from the Netherlands. He has contributed to NIC Yearbook and Kaissiber, the freethinker's magazine on chess openings. In 2019 Welling published, together with Steve Giddins, the highly successful chess opening guide 'Side-Stepping Mainline Theory' (ISBN 9789056918699). Steve Giddins is a FIDE Master from England, and a highly experienced chess writer and journalist. He compiled and edited 'The New In Chess Book of Chess Improvement', the bestselling anthology of master classes from New In Chess magazine. In 2019 Giddins published, together with Gerard Welling, the highly successful chess opening guide 'Side-Stepping Mainline Theory' (ISBN 9789056918699).