'The Jacobean Grand Tour: Early Stuart Travellers in Europe' (I.B. Tauris: London, 2013) [with Edward Chaney].
'Of Neighing Coursers and Trumpets Shrill: A Life of Richard Preston, Earl of Desmond and Lord Dingwall' (c.1570–1628)(Lucas Publishing: London, 2013).
(ed). 'Prince Henry Revived. Image and Exemplarity in Early Modern England.' (Paul Holberton: London, 2007), including, as author: ‘Introduction: Image and Exemplarity’ pp. 10–21; ‘Henry, Prince of Wales on Horseback: a note on patronage and provenance’, pp. 173–179; ‘The Pike Charged: Henry as Militant Prince’ pp. 180–211.
'The Lost Prince: Prince Henry Stuart' (National Portrait Gallery: London, 2012), Introduction and introductory essay to section: ‘The Collections’.
[curator and ed.] 'A Cornucopia of Collections' (Southampton Institute, 2001), Introduction and 261 catalogue entries.
‘The Court of Prince Henry and the Jacobean Stage’, in The Oxford Companion to the Age of Shakespeare, ed. R. Malcolm Smuts (OUP: Oxford, 2016).
‘The Art and Architecture of War, Revolution and Restoration’ in The Oxford Handbook of the English Revolution, ed. Michael Braddick (OUP: Oxford, 2014).
‘Plundered art for the collections of Charles I? The capture of Munich in May, 1632’, in Excalibur: Essays on Antiquity and the History of Collecting in Honour of Arthur MacGregor, eds Hildegard Wiegel and Michael Vickers (Archaeopress: Oxford, 2013), pp. 39-60.
‘Richard Burke, 4th Earl of Clanricard and the Early Stuart Court’ in Clanricard’s Castle, Portumna, ed. Jane Fenlon, intro. Mark Girouard, (Four Courts Press: Dublin, 2012), pp. 8-31.
‘The Paintings Within’ and ‘The Statuette’ in Nicholas Lanier, 1588–1666. A Portrait Revealed, ed. Duncan Thomson (Weiss Gallery: London, 2010), pp. 30–59, 60–69.
[long review] Francis Haskell, with a foreword by Nicholas Penny, edited by Karen Serres, 'The King’s Pictures: The Formation and Dispersal of the Collections of Charles I and his Courtiers'. New Haven and London, Yale University Press, 2013. Journal of the History of Collections (2014) 26 (2): 315-317.
‘Art, Architecture and Politics’ in The Blackwell Companion to Stuart Britain, ed., Barry Coward, (Blackwell: Oxford, 2002; paperback edn. Wiley-Blackwell: Chichester, 2009), pp.187–213.
‘The Peer, the Plantsman, and the Picture-Maker: the English Embassy to the Court of Christian IV of Denmark, 1603’, The Court Historian, 12, 2 (December, 2007), pp. 155–71.
'Paying attention to the adorning of a most beautiful gallery': the Picture Gallery at St. James’s Palace, 1609–1649’, The Court Historian,10, 2 (December, 2005), pp. 149–72.
'Forbear the Heat and Haste of Building: Rivalries among the Designers at Prince Henry's Court’, The Court Historian, 6, 1 (May, 2001), pp. 49–65.