Compared to the campaigns fought in Europe and North Africa, and the campaign in the pacific for that matter, the Burma campaign fought between the Allies and Japan and Thailand is comparatively rarely discussed, despite its very high body count on both sides and strategic importance for China and India. Why is this the case?
Agreed with /u/Second_Mate . military historians certainly talk about it and it had great influence in the UK war effort as well as in the US and Chinese armies. We can probably say that there is less literature compared with D-Day or North Africa, probably, but the theater is not ignored. Can't think of a book on the British effort there however from the US side Barbara Tuchman wrote "Stilwell and the American experience in China" It devotes some chapters to the American and Chinese armies present in Burma and found them very entertaining. Spoiler: might be a bit biased in favor of the US but an interesting view nonetheless.
"Defeat into Victory" is very good. http://www.amazon.co.uk/Defeat-Into-Victory-Military-Classics/dp/0330509977
I think that yours is a false premise. In Britain, although not as frequently discussed as other theatres, it is certainly discussed and of interest.