During his childhood, Gonsalves developed an interest in drawing from imagination using various media. By the age of twelve, his awareness of architecture grew as he learn perspective techniques and he began to create his first paintings and renderings of imagined buildings. After an introduction to artists Dali and Tanguy, Gonsalves began his first surrealist paintings.
Although Gonsalves' works are often called surrealistic, they differs due to the fact that the images are deliberately planned and result from conscious thought. Ideas are largely generated by the external world and involve recognizable human activities, using carefully planned illusionist devices. Gonsalves injects a sense of magic into realistic scenes. As a result, the term "Magic Realism" describes his work accurately. His work is an attempt to represent human beings' desire to believe the impossible, to be open to possibility.
In June 2003, Simon & Schuster introduced North America and Canada to "Imagine a Night", Gonsalves' first hardcover book featuring sixteen paintings. Due to the success of "Imagine a Night", Simon & Schuster released a second book, "Imagine a Day", in 2004 for which he won the 2005 Governor General's Award in the Children's Literature - Illustration category. He is also an accomplished guitarist. His book "Imagine a Place" was released in 2008.