If you don't have access to an architecture library (and even if you do), sifting through shelves can take hours. Buying books can be even more painful — for your wallet, at least. Instead, why not browse this list of 25 books that are all free and easily accessible online? Some are well-known classics of architecture literature, but we hope you find a few surprises as well.

1. Vitruvius: The Ten Books on Architecture (15 BC)

By Vitruvius Pollio

Quite simply, one of the most influential architecture books of all time.

2. Seven Lamps of Architecture (1889)

By John Ruskin

John Ruskin was an exceptionally talented painter, philosopher and art critic in Victorian England. The Seven Lamps of Architecture, including “Sacrifice,” “Truth” and “Beauty,” is well worth uncovering — not just for the philosophical lessons but also for Ruskin’s amazing illustrations.

3. The Stones of Venice (1851)

By John Ruskin

The Stones of Venice is Ruskin’s sequel to The Seven Lamps of Architecture. If you have been or want to go to Venice, this book provides comprehensive studies and sketches of the city.

4. A History of Architecture on The Comparative Method (1905)

By Banister Fletcher

English architect Banister Fletcher and his father (Banister Fletcher Sr.) penned this book comparing the architecture of various countries, trying to find the origins of their particular styles. Particularly interesting are the sketches of uncommon periods, such as Prehistoric architecture.

5. Japan : Its Architecture, Art, And Art Manufactures (1882)

By Christopher Dresser

Considered the first industrial designer, Christopher Dresser studied the craft of Japanese design. Dresser includes his elegant Japanese influenced sketches and drawings.

6. Le Corbusier: Elements of a Synthesis (1968)

By Stanislaus von Moos

Elements of a Synthesis is a precise and systematic dissection of Le Corbusier's life and work.

7. The Architectonic Colour: Polychromy in the Purist Architecture of Le Corbusier (2011)

By Jan De Heer

This book dissects and examines Le Corbusier’s relationship with Purist Painting.

8. Design and Analysis (1997)

By Bernard Leupen, Christoph Grafe, Nicola Kornig, Mark Lampe and Peter de Zeeuw

Written by a team of professors at TU Delft who advocate for "design analysis” - a way of fusing research and education for the advancement of design practices.

9. Surrealism and Architecture (2005)

Edited by Thomas Mical

Thomas Mical attempts to show the significant connection between surrealist painting and architecture.

10. The Architecture of the City (1982)

By Aldo Rossi

Pritzker winner Aldo Rossi's take on urban planning’s impact on the construction of the city. His urban theories were considered groundbreaking at the time this book was published.

11. Louis Sullivan As He Lived: The Shaping Of American Architecture (1960)

By Willard Connely

Willard Connelly's biography of the influential Louis Sullivan, mentor to Frank Lloyd Wright and the man who made Chicago the steel city it is today.

12. Technics and Civilization (1934)

By Lewis Mumford - 1934

Lewis Mumford was a prominent writer, critical regionalist and opponent to suburbanization. In Technics and Civilization, he takes an analytical look at how the machine has impacted civilization throughout history.

13. Sticks and Stones (1926)

By Lewis Mumford

Lewis Mumford on American building and architecture, from vernacular to the early 19th century.

14. De Re Aedificatoria (1443)

By Leon Battista Alberti

Also known as On The Art Of Building, De Re Aedificatoria was the first book on Architecture printed during the Renaissance. It is considered by many to be as important an example of early architectural writing as Vitruvius’ Ten Books.

15. Eric Mendelsohn (1940)

By Arnold Whittick

The biography of Eric Mendelsohn, the architect known for his simple yet powerful sketches. An influential art deco architect, Mendelsohn escaped Nazi Germany, finding success abroad.

16. A History Of Architecture (1918)

By Fiske Kimball

Fiske Kimball, who worked on the preservation of Thomas Jefferson’s Monticello, wrote this chronological history of Architecture from before the Renaissance. An interesting take on architecture as seen through the eyes of a preservationist rather than an architect.

17. Architecture And Furniture (1938)

By The Museum Of Modern Art

These essays highlight Alvar Aalto's designs in architecture and furniture. Originally published as a companion to a furniture and design exhibition at the MoMA in 1938, the highlight is Aalto’s early use of new and innovative wood products.

18. The Lesson Of Japanese Architecture (1936)

By Jiro Harada

With plenty of accompanying graphics, this gives an overarching perspective on Japanese Architecture from pre-Buddhist Japan until the 1930’s.

19. Four Walking Tours Of Modern Architecture In New York City (1961)

By Ada Louise Huxtable

Huxtable was the first architecture critic at The New York Times and a Pulitzer Prize winner. This, one of Huxtable's lesser known works, still has relevance to this day (even if a few of the buildings have had name changes).

20. Architecture: Nineteenth And Twentieth Centuries (1958)

By Henry Russell Hitchock

A book devoted to materials and their influence on 19th and 20th century architecture.

21. Built In USA: Post-War Architecture (1949)

By Henry Russell Hitchcock and Arthur Drexler

Photos, plans and sections of the works of mid-century modern masters, including Alvar Aalto, Mies van der Rohe and others.

22. Modern California Houses; Case Study Houses 1945-1962 (1962)

By Esther McCoy

Designed by architects such as Richard Neutra and Pierre Koenig, these houses defined west-coast architectural theory at the time.

23. White Pillars (1941)

By J. Frazer Smith

Rural American architecture tends to be passed over, so White Pillars, whichcovers the vernacular/plantation architecture of the Mississippi Valley, is a refreshing read.

24. Modern Church Architecture (1962)

By Albert Christ-Janer and Mary Mix Foley

The 20th century churches and religious buildings included here represent a paradigm shift from traditional religious architecture.

25. Thomas Jefferson Architect and Builder (1873)

By I.T. Frary

A critical look at Thomas Jefferson as an architect, including the many (architectural) mistakes he made throughout his career. A particularly intriguing section is a long history of the constant rebuilding and redesign of Monticello.