If you are looking for a "useful guide" in book form to learn about the history and symbolism of flags (), these are top-rated options:
: If you're designing a custom flag, the North American Vexillological Association recommends keeping designs simple enough for a child to draw from memory [42, 45]. where can i buy flags
(B.C. Lester Books): A more accessible guide organized by continent, featuring easy-to-read facts and location maps [3]. Price : ~$9.99 – $13.74 [3] If you are looking for a "useful guide"