Mk1 and Mk4 comprehensive theatre accounts - Recommended
Excellent accounts of one of WW2 early British bombers, fast initially as an exsecertives business transport, much slower when gun turrets and bomb bays added (less than 300mph) and thus like the stuka, easy slow meat for fighters like Germanys Bf110 and Bf109s, but none the less due to its numbers a main stay of the RAF up to '42 and still wide spread in secondary theatres there after.
Some great campain accounts and comprehensive model updates via illustrations and photos, the Mk1 still the more styleish to my eye but a good indepth study by this Osprey book, Recommended