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We ship from Glasgow by Royal Mail: Tracked 48 as standard in the UK (2nd and 1st Class, untracked, can be chosen at checkout) and International Tracked to the destinations listed at checkout. Orders of up to six books show exact postage at checkout unless the parcel is over 2 kg; for a heavier parcel, or seven or more copies, contact us for a combined quote. Delivery timing begins after dispatch.

Yes. Multi-buy discounts apply automatically (5% on 2 books, 10% on 3). For larger trade or library orders please contact Charles directly.

Yes. Books in their original condition may be returned within 30 days of delivery for a refund, and faulty or damaged books are covered by your statutory rights. See the returns page for details.

In-stock orders usually dispatch from Glasgow within 1 to 2 working days of payment. Pre-orders dispatch on or after the publication date shown on the book page and at checkout; mixed baskets are sent together.

Every order confirmation and dispatch email from orders@charlesmackaybooks.com includes a direct status link showing your fulfilment progress and any Royal Mail tracking reference, or you can look up an order on the Track Your Order page using your order reference and billing postcode.

Yes. Charles E. MacKay welcomes correspondence from readers, aviation historians, museum curators, and relatives of aircrew or shipyard workers connected to Clydeside aviation, William Beardmore & Co., the Royal Flying Corps, the Luftwaffe, or the other subjects in the catalogue.

Libraries, aviation museums, historical societies, and bookshops in the United Kingdom and overseas can select Institutional enquiry in the contact form to request trade terms, pro-forma invoices, or combined multi-copy postage quotes from A Mackay (Publisher) Ltd in Glasgow (company number SC858624).