The Theory

The Big Bang Theory                              

Hay House UK

The Let Them Theory: A Life-Changing Tool That Millions of People Can't Stop Talking About (English Edition)

Princeton Univ Pr

The Theory of Incentives: The Principal-Agent Model

Grand Central Publishing

The Big Bang Theory: The Definitive, Inside Story of the Epic Hit Series

JAGJAGUWAR

Sharon Van Etten & The Attachment Theory        

MONDADORI

The Theory                                      

Bossi - Theory of Involution                    

ABRSM

Discovering Music Theory, The ABRSM Grade 1 Workbook

Revelation Press (24th July, 2023)

The Theory of the Novel (English Edition)        

Independently published

Guitar Theory Simplified: Demystifying The Language Of Music